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Finding the Fourth Proportional to 172,382.83, 258,816.44 and 88,203.36

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Solution

The fourth proportional to 172,382.83, 258,816.44 and 88,203.36 is: 132,428.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,382.83 : 258,816.44 = 88,203.36 : x
  2. Step 2: Convert to fraction form
    172,382.83/258,816.44 = 88,203.36/x
  3. Step 3: Cross multiply
    172,382.83x = 258,816.44 × 88,203.36
  4. Step 4: Simplify right side
    172,382.83x = 22,828,479,631.24
  5. Step 5: Solve for x
    x = 22,828,479,631.24/172,382.83
  6. Step 6: Final answer
    x = 132,428.96

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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.