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Finding the Fourth Proportional to 172,512.68, 258,766.70 and 44,428.26

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Solution

The fourth proportional to 172,512.68, 258,766.70 and 44,428.26 is: 66,641.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,512.68 : 258,766.70 = 44,428.26 : x
  2. Step 2: Convert to fraction form
    172,512.68/258,766.70 = 44,428.26/x
  3. Step 3: Cross multiply
    172,512.68x = 258,766.70 × 44,428.26
  4. Step 4: Simplify right side
    172,512.68x = 11,496,554,004.80
  5. Step 5: Solve for x
    x = 11,496,554,004.80/172,512.68
  6. Step 6: Final answer
    x = 66,641.79

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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.