Home / 394,733.78-592,147.08-138,488.16

Finding the Fourth Proportional to 394,733.78, 592,147.08 and 138,488.16

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Solution

The fourth proportional to 394,733.78, 592,147.08 and 138,488.16 is: 207,748.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,733.78 : 592,147.08 = 138,488.16 : x
  2. Step 2: Convert to fraction form
    394,733.78/592,147.08 = 138,488.16/x
  3. Step 3: Cross multiply
    394,733.78x = 592,147.08 × 138,488.16
  4. Step 4: Simplify right side
    394,733.78x = 82,005,359,558.57
  5. Step 5: Solve for x
    x = 82,005,359,558.57/394,733.78
  6. Step 6: Final answer
    x = 207,748.52

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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.