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Finding the Fourth Proportional to 172,601.38, 258,913.24 and 54,277.30

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Solution

The fourth proportional to 172,601.38, 258,913.24 and 54,277.30 is: 81,419.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,601.38 : 258,913.24 = 54,277.30 : x
  2. Step 2: Convert to fraction form
    172,601.38/258,913.24 = 54,277.30/x
  3. Step 3: Cross multiply
    172,601.38x = 258,913.24 × 54,277.30
  4. Step 4: Simplify right side
    172,601.38x = 14,053,111,601.45
  5. Step 5: Solve for x
    x = 14,053,111,601.45/172,601.38
  6. Step 6: Final answer
    x = 81,419.46

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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.