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Finding the Fourth Proportional to 389,432.90, 584,149.35 and 152,783.30

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Solution

The fourth proportional to 389,432.90, 584,149.35 and 152,783.30 is: 229,174.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,432.90 : 584,149.35 = 152,783.30 : x
  2. Step 2: Convert to fraction form
    389,432.90/584,149.35 = 152,783.30/x
  3. Step 3: Cross multiply
    389,432.90x = 584,149.35 × 152,783.30
  4. Step 4: Simplify right side
    389,432.90x = 89,248,265,385.86
  5. Step 5: Solve for x
    x = 89,248,265,385.86/389,432.90
  6. Step 6: Final answer
    x = 229,174.95

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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.