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Finding the Fourth Proportional to 181,269.20, 271,903.80 and 139,230.20

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Solution

The fourth proportional to 181,269.20, 271,903.80 and 139,230.20 is: 208,845.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,269.20 : 271,903.80 = 139,230.20 : x
  2. Step 2: Convert to fraction form
    181,269.20/271,903.80 = 139,230.20/x
  3. Step 3: Cross multiply
    181,269.20x = 271,903.80 × 139,230.20
  4. Step 4: Simplify right side
    181,269.20x = 37,857,220,454.76
  5. Step 5: Solve for x
    x = 37,857,220,454.76/181,269.20
  6. Step 6: Final answer
    x = 208,845.30

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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.