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Finding the Fourth Proportional to 658,194, 987,291 and 159,558

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Solution

The fourth proportional to 658,194, 987,291 and 159,558 is: 239,337

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,194 : 987,291 = 159,558 : x
  2. Step 2: Convert to fraction form
    658,194/987,291 = 159,558/x
  3. Step 3: Cross multiply
    658,194x = 987,291 × 159,558
  4. Step 4: Simplify right side
    658,194x = 157,530,177,378
  5. Step 5: Solve for x
    x = 157,530,177,378/658,194
  6. Step 6: Final answer
    x = 239,337

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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.