Home / 258,160.98-387,280.92-131,732.28

Finding the Fourth Proportional to 258,160.98, 387,280.92 and 131,732.28

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Solution

The fourth proportional to 258,160.98, 387,280.92 and 131,732.28 is: 197,618.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,160.98 : 387,280.92 = 131,732.28 : x
  2. Step 2: Convert to fraction form
    258,160.98/387,280.92 = 131,732.28/x
  3. Step 3: Cross multiply
    258,160.98x = 387,280.92 × 131,732.28
  4. Step 4: Simplify right side
    258,160.98x = 51,017,398,592.10
  5. Step 5: Solve for x
    x = 51,017,398,592.10/258,160.98
  6. Step 6: Final answer
    x = 197,618.55

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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.