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Finding the Fourth Proportional to 540,350.40, 810,526.24 and 140,990.88

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Solution

The fourth proportional to 540,350.40, 810,526.24 and 140,990.88 is: 211,486.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,350.40 : 810,526.24 = 140,990.88 : x
  2. Step 2: Convert to fraction form
    540,350.40/810,526.24 = 140,990.88/x
  3. Step 3: Cross multiply
    540,350.40x = 810,526.24 × 140,990.88
  4. Step 4: Simplify right side
    540,350.40x = 114,276,807,840.69
  5. Step 5: Solve for x
    x = 114,276,807,840.69/540,350.40
  6. Step 6: Final answer
    x = 211,486.49

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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.