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Finding the Fourth Proportional to 305,338.64, 457,613.76 and 136,735.52

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Solution

The fourth proportional to 305,338.64, 457,613.76 and 136,735.52 is: 204,926.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,338.64 : 457,613.76 = 136,735.52 : x
  2. Step 2: Convert to fraction form
    305,338.64/457,613.76 = 136,735.52/x
  3. Step 3: Cross multiply
    305,338.64x = 457,613.76 × 136,735.52
  4. Step 4: Simplify right side
    305,338.64x = 62,572,055,432.76
  5. Step 5: Solve for x
    x = 62,572,055,432.76/305,338.64
  6. Step 6: Final answer
    x = 204,926.75

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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.