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Finding the Fourth Proportional to 239,791, 359,500.36 and 155,372.80

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Solution

The fourth proportional to 239,791, 359,500.36 and 155,372.80 is: 232,938.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,791 : 359,500.36 = 155,372.80 : x
  2. Step 2: Convert to fraction form
    239,791/359,500.36 = 155,372.80/x
  3. Step 3: Cross multiply
    239,791x = 359,500.36 × 155,372.80
  4. Step 4: Simplify right side
    239,791x = 55,856,577,534.21
  5. Step 5: Solve for x
    x = 55,856,577,534.21/239,791
  6. Step 6: Final answer
    x = 232,938.59

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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.