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Finding the Fourth Proportional to 257,611.33, 386,294.28 and 95,452.57

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Solution

The fourth proportional to 257,611.33, 386,294.28 and 95,452.57 is: 143,133.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,611.33 : 386,294.28 = 95,452.57 : x
  2. Step 2: Convert to fraction form
    257,611.33/386,294.28 = 95,452.57/x
  3. Step 3: Cross multiply
    257,611.33x = 386,294.28 × 95,452.57
  4. Step 4: Simplify right side
    257,611.33x = 36,872,781,802.30
  5. Step 5: Solve for x
    x = 36,872,781,802.30/257,611.33
  6. Step 6: Final answer
    x = 143,133.39

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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.