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Finding the Fourth Proportional to 205,350.70, 308,026.05 and 134,491.90

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Solution

The fourth proportional to 205,350.70, 308,026.05 and 134,491.90 is: 201,737.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,350.70 : 308,026.05 = 134,491.90 : x
  2. Step 2: Convert to fraction form
    205,350.70/308,026.05 = 134,491.90/x
  3. Step 3: Cross multiply
    205,350.70x = 308,026.05 × 134,491.90
  4. Step 4: Simplify right side
    205,350.70x = 41,427,008,714.00
  5. Step 5: Solve for x
    x = 41,427,008,714.00/205,350.70
  6. Step 6: Final answer
    x = 201,737.85

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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.