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Finding the Fourth Proportional to 181,871.80, 272,807.70 and 55,511.80

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Solution

The fourth proportional to 181,871.80, 272,807.70 and 55,511.80 is: 83,267.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,871.80 : 272,807.70 = 55,511.80 : x
  2. Step 2: Convert to fraction form
    181,871.80/272,807.70 = 55,511.80/x
  3. Step 3: Cross multiply
    181,871.80x = 272,807.70 × 55,511.80
  4. Step 4: Simplify right side
    181,871.80x = 15,144,046,480.86
  5. Step 5: Solve for x
    x = 15,144,046,480.86/181,871.80
  6. Step 6: Final answer
    x = 83,267.70

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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.