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Finding the Fourth Proportional to 332,138.30, 498,207.45 and 121,748.90

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Solution

The fourth proportional to 332,138.30, 498,207.45 and 121,748.90 is: 182,623.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,138.30 : 498,207.45 = 121,748.90 : x
  2. Step 2: Convert to fraction form
    332,138.30/498,207.45 = 121,748.90/x
  3. Step 3: Cross multiply
    332,138.30x = 498,207.45 × 121,748.90
  4. Step 4: Simplify right side
    332,138.30x = 60,656,209,009.31
  5. Step 5: Solve for x
    x = 60,656,209,009.31/332,138.30
  6. Step 6: Final answer
    x = 182,623.35

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Similar ratio
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1.5x scale

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.