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Finding the Fourth Proportional to 625,486.16, 938,228.88 and 251,421.68

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Solution

The fourth proportional to 625,486.16, 938,228.88 and 251,421.68 is: 377,132.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,486.16 : 938,228.88 = 251,421.68 : x
  2. Step 2: Convert to fraction form
    625,486.16/938,228.88 = 251,421.68/x
  3. Step 3: Cross multiply
    625,486.16x = 938,228.88 × 251,421.68
  4. Step 4: Simplify right side
    625,486.16x = 235,891,081,234.12
  5. Step 5: Solve for x
    x = 235,891,081,234.12/625,486.16
  6. Step 6: Final answer
    x = 377,132.38

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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.