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Finding the Fourth Proportional to 315,104.80, 472,657.20 and 93,488.80

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Solution

The fourth proportional to 315,104.80, 472,657.20 and 93,488.80 is: 140,233.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,104.80 : 472,657.20 = 93,488.80 : x
  2. Step 2: Convert to fraction form
    315,104.80/472,657.20 = 93,488.80/x
  3. Step 3: Cross multiply
    315,104.80x = 472,657.20 × 93,488.80
  4. Step 4: Simplify right side
    315,104.80x = 44,188,154,439.36
  5. Step 5: Solve for x
    x = 44,188,154,439.36/315,104.80
  6. Step 6: Final answer
    x = 140,233.20

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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.