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Finding the Fourth Proportional to 495,147.39, 742,997.00 and 267,438.42

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Solution

The fourth proportional to 495,147.39, 742,997.00 and 267,438.42 is: 401,306.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,147.39 : 742,997.00 = 267,438.42 : x
  2. Step 2: Convert to fraction form
    495,147.39/742,997.00 = 267,438.42/x
  3. Step 3: Cross multiply
    495,147.39x = 742,997.00 × 267,438.42
  4. Step 4: Simplify right side
    495,147.39x = 198,705,942,407.55
  5. Step 5: Solve for x
    x = 198,705,942,407.55/495,147.39
  6. Step 6: Final answer
    x = 401,306.65

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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.