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Finding the Fourth Proportional to 172,546.35, 258,860.97 and 54,217.59

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Solution

The fourth proportional to 172,546.35, 258,860.97 and 54,217.59 is: 81,339.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,546.35 : 258,860.97 = 54,217.59 : x
  2. Step 2: Convert to fraction form
    172,546.35/258,860.97 = 54,217.59/x
  3. Step 3: Cross multiply
    172,546.35x = 258,860.97 × 54,217.59
  4. Step 4: Simplify right side
    172,546.35x = 14,034,817,938.46
  5. Step 5: Solve for x
    x = 14,034,817,938.46/172,546.35
  6. Step 6: Final answer
    x = 81,339.41

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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.