Home / 258,719.52-357,029.28-145,542

Finding the Fourth Proportional to 258,719.52, 357,029.28 and 145,542

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Solution

The fourth proportional to 258,719.52, 357,029.28 and 145,542 is: 200,845.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,719.52 : 357,029.28 = 145,542 : x
  2. Step 2: Convert to fraction form
    258,719.52/357,029.28 = 145,542/x
  3. Step 3: Cross multiply
    258,719.52x = 357,029.28 × 145,542
  4. Step 4: Simplify right side
    258,719.52x = 51,962,755,469.76
  5. Step 5: Solve for x
    x = 51,962,755,469.76/258,719.52
  6. Step 6: Final answer
    x = 200,845.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.