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Finding the Fourth Proportional to 240,355.54, 360,279.06 and 90,531

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Solution

The fourth proportional to 240,355.54, 360,279.06 and 90,531 is: 135,700.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,355.54 : 360,279.06 = 90,531 : x
  2. Step 2: Convert to fraction form
    240,355.54/360,279.06 = 90,531/x
  3. Step 3: Cross multiply
    240,355.54x = 360,279.06 × 90,531
  4. Step 4: Simplify right side
    240,355.54x = 32,616,423,580.86
  5. Step 5: Solve for x
    x = 32,616,423,580.86/240,355.54
  6. Step 6: Final answer
    x = 135,700.74

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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.