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Finding the Fourth Proportional to 658,131.52, 987,197.31 and 159,495.52

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Solution

The fourth proportional to 658,131.52, 987,197.31 and 159,495.52 is: 239,243.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,131.52 : 987,197.31 = 159,495.52 : x
  2. Step 2: Convert to fraction form
    658,131.52/987,197.31 = 159,495.52/x
  3. Step 3: Cross multiply
    658,131.52x = 987,197.31 × 159,495.52
  4. Step 4: Simplify right side
    658,131.52x = 157,453,548,301.05
  5. Step 5: Solve for x
    x = 157,453,548,301.05/658,131.52
  6. Step 6: Final answer
    x = 239,243.29

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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.