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Finding the Fourth Proportional to 181,553.80, 272,100.30 and 161,739.40

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Solution

The fourth proportional to 181,553.80, 272,100.30 and 161,739.40 is: 242,403.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,553.80 : 272,100.30 = 161,739.40 : x
  2. Step 2: Convert to fraction form
    181,553.80/272,100.30 = 161,739.40/x
  3. Step 3: Cross multiply
    181,553.80x = 272,100.30 × 161,739.40
  4. Step 4: Simplify right side
    181,553.80x = 44,009,339,261.82
  5. Step 5: Solve for x
    x = 44,009,339,261.82/181,553.80
  6. Step 6: Final answer
    x = 242,403.85

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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.