Home / 438,426.10-657,639.15-251,283.70

Finding the Fourth Proportional to 438,426.10, 657,639.15 and 251,283.70

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Solution

The fourth proportional to 438,426.10, 657,639.15 and 251,283.70 is: 376,925.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,426.10 : 657,639.15 = 251,283.70 : x
  2. Step 2: Convert to fraction form
    438,426.10/657,639.15 = 251,283.70/x
  3. Step 3: Cross multiply
    438,426.10x = 657,639.15 × 251,283.70
  4. Step 4: Simplify right side
    438,426.10x = 165,253,998,876.86
  5. Step 5: Solve for x
    x = 165,253,998,876.86/438,426.10
  6. Step 6: Final answer
    x = 376,925.55

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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.