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Finding the Fourth Proportional to 510,100.90, 764,276.55 and 243,286.90

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Solution

The fourth proportional to 510,100.90, 764,276.55 and 243,286.90 is: 364,513.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,100.90 : 764,276.55 = 243,286.90 : x
  2. Step 2: Convert to fraction form
    510,100.90/764,276.55 = 243,286.90/x
  3. Step 3: Cross multiply
    510,100.90x = 764,276.55 × 243,286.90
  4. Step 4: Simplify right side
    510,100.90x = 185,938,472,592.20
  5. Step 5: Solve for x
    x = 185,938,472,592.20/510,100.90
  6. Step 6: Final answer
    x = 364,513.12

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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.