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Finding the Fourth Proportional to 495,429.70, 743,144.55 and 121,452.70

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Solution

The fourth proportional to 495,429.70, 743,144.55 and 121,452.70 is: 182,179.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,429.70 : 743,144.55 = 121,452.70 : x
  2. Step 2: Convert to fraction form
    495,429.70/743,144.55 = 121,452.70/x
  3. Step 3: Cross multiply
    495,429.70x = 743,144.55 × 121,452.70
  4. Step 4: Simplify right side
    495,429.70x = 90,256,912,087.79
  5. Step 5: Solve for x
    x = 90,256,912,087.79/495,429.70
  6. Step 6: Final answer
    x = 182,179.05

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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.