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Finding the Fourth Proportional to 181,674.40, 272,972.40 and 161,399.20

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Solution

The fourth proportional to 181,674.40, 272,972.40 and 161,399.20 is: 242,508.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,674.40 : 272,972.40 = 161,399.20 : x
  2. Step 2: Convert to fraction form
    181,674.40/272,972.40 = 161,399.20/x
  3. Step 3: Cross multiply
    181,674.40x = 272,972.40 × 161,399.20
  4. Step 4: Simplify right side
    181,674.40x = 44,057,526,982.08
  5. Step 5: Solve for x
    x = 44,057,526,982.08/181,674.40
  6. Step 6: Final answer
    x = 242,508.17

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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.