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Finding the Fourth Proportional to 465,487.20, 698,230.80 and 228,780.90

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Solution

The fourth proportional to 465,487.20, 698,230.80 and 228,780.90 is: 343,171.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,487.20 : 698,230.80 = 228,780.90 : x
  2. Step 2: Convert to fraction form
    465,487.20/698,230.80 = 228,780.90/x
  3. Step 3: Cross multiply
    465,487.20x = 698,230.80 × 228,780.90
  4. Step 4: Simplify right side
    465,487.20x = 159,741,870,831.72
  5. Step 5: Solve for x
    x = 159,741,870,831.72/465,487.20
  6. Step 6: Final answer
    x = 343,171.35

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Similar ratio
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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.