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Finding the Fourth Proportional to 402,279.92, 555,084.64 and 232,481.28

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Solution

The fourth proportional to 402,279.92, 555,084.64 and 232,481.28 is: 320,788.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,279.92 : 555,084.64 = 232,481.28 : x
  2. Step 2: Convert to fraction form
    402,279.92/555,084.64 = 232,481.28/x
  3. Step 3: Cross multiply
    402,279.92x = 555,084.64 × 232,481.28
  4. Step 4: Simplify right side
    402,279.92x = 129,046,787,615.54
  5. Step 5: Solve for x
    x = 129,046,787,615.54/402,279.92
  6. Step 6: Final answer
    x = 320,788.54

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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.