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Finding the Fourth Proportional to 172,549.44, 258,691.68 and 154,965.60

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Solution

The fourth proportional to 172,549.44, 258,691.68 and 154,965.60 is: 232,329.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,549.44 : 258,691.68 = 154,965.60 : x
  2. Step 2: Convert to fraction form
    172,549.44/258,691.68 = 154,965.60/x
  3. Step 3: Cross multiply
    172,549.44x = 258,691.68 × 154,965.60
  4. Step 4: Simplify right side
    172,549.44x = 40,088,311,406.21
  5. Step 5: Solve for x
    x = 40,088,311,406.21/172,549.44
  6. Step 6: Final answer
    x = 232,329.42

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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.