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Finding the Fourth Proportional to 172,555.17, 258,832.80 and 47,896.17

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Solution

The fourth proportional to 172,555.17, 258,832.80 and 47,896.17 is: 71,844.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,555.17 : 258,832.80 = 47,896.17 : x
  2. Step 2: Convert to fraction form
    172,555.17/258,832.80 = 47,896.17/x
  3. Step 3: Cross multiply
    172,555.17x = 258,832.80 × 47,896.17
  4. Step 4: Simplify right side
    172,555.17x = 12,397,099,790.38
  5. Step 5: Solve for x
    x = 12,397,099,790.38/172,555.17
  6. Step 6: Final answer
    x = 71,844.27

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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.