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Finding the Fourth Proportional to 267,539.72, 401,276.76 and 155,281

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Solution

The fourth proportional to 267,539.72, 401,276.76 and 155,281 is: 232,902.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,539.72 : 401,276.76 = 155,281 : x
  2. Step 2: Convert to fraction form
    267,539.72/401,276.76 = 155,281/x
  3. Step 3: Cross multiply
    267,539.72x = 401,276.76 × 155,281
  4. Step 4: Simplify right side
    267,539.72x = 62,310,656,569.56
  5. Step 5: Solve for x
    x = 62,310,656,569.56/267,539.72
  6. Step 6: Final answer
    x = 232,902.45

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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.