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Finding the Fourth Proportional to 363,892.59, 543,280.20 and 278,054.21

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Solution

The fourth proportional to 363,892.59, 543,280.20 and 278,054.21 is: 415,126.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,892.59 : 543,280.20 = 278,054.21 : x
  2. Step 2: Convert to fraction form
    363,892.59/543,280.20 = 278,054.21/x
  3. Step 3: Cross multiply
    363,892.59x = 543,280.20 × 278,054.21
  4. Step 4: Simplify right side
    363,892.59x = 151,061,344,103.24
  5. Step 5: Solve for x
    x = 151,061,344,103.24/363,892.59
  6. Step 6: Final answer
    x = 415,126.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.