Home / 990,185.20-1,485,277.80-242,231.20

Finding the Fourth Proportional to 990,185.20, 1,485,277.80 and 242,231.20

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Solution

The fourth proportional to 990,185.20, 1,485,277.80 and 242,231.20 is: 363,346.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,185.20 : 1,485,277.80 = 242,231.20 : x
  2. Step 2: Convert to fraction form
    990,185.20/1,485,277.80 = 242,231.20/x
  3. Step 3: Cross multiply
    990,185.20x = 1,485,277.80 × 242,231.20
  4. Step 4: Simplify right side
    990,185.20x = 359,780,623,827.36
  5. Step 5: Solve for x
    x = 359,780,623,827.36/990,185.20
  6. Step 6: Final answer
    x = 363,346.80

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.