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Finding the Fourth Proportional to 625,426.30, 938,139.45 and 251,256.70

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Solution

The fourth proportional to 625,426.30, 938,139.45 and 251,256.70 is: 376,885.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,426.30 : 938,139.45 = 251,256.70 : x
  2. Step 2: Convert to fraction form
    625,426.30/938,139.45 = 251,256.70/x
  3. Step 3: Cross multiply
    625,426.30x = 938,139.45 × 251,256.70
  4. Step 4: Simplify right side
    625,426.30x = 235,713,822,346.82
  5. Step 5: Solve for x
    x = 235,713,822,346.82/625,426.30
  6. Step 6: Final answer
    x = 376,885.05

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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.