Home / 352,215.60-486,101.40-231,456.74

Finding the Fourth Proportional to 352,215.60, 486,101.40 and 231,456.74

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Solution

The fourth proportional to 352,215.60, 486,101.40 and 231,456.74 is: 319,439.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,215.60 : 486,101.40 = 231,456.74 : x
  2. Step 2: Convert to fraction form
    352,215.60/486,101.40 = 231,456.74/x
  3. Step 3: Cross multiply
    352,215.60x = 486,101.40 × 231,456.74
  4. Step 4: Simplify right side
    352,215.60x = 112,511,445,353.44
  5. Step 5: Solve for x
    x = 112,511,445,353.44/352,215.60
  6. Step 6: Final answer
    x = 319,439.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.