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Finding the Fourth Proportional to 660,350.40, 990,525.60 and 187,029.60

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Solution

The fourth proportional to 660,350.40, 990,525.60 and 187,029.60 is: 280,544.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,350.40 : 990,525.60 = 187,029.60 : x
  2. Step 2: Convert to fraction form
    660,350.40/990,525.60 = 187,029.60/x
  3. Step 3: Cross multiply
    660,350.40x = 990,525.60 × 187,029.60
  4. Step 4: Simplify right side
    660,350.40x = 185,257,606,757.76
  5. Step 5: Solve for x
    x = 185,257,606,757.76/660,350.40
  6. Step 6: Final answer
    x = 280,544.40

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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.