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Finding the Fourth Proportional to 266,446.60, 367,696.40 and 143,939.02

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Solution

The fourth proportional to 266,446.60, 367,696.40 and 143,939.02 is: 198,635.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,446.60 : 367,696.40 = 143,939.02 : x
  2. Step 2: Convert to fraction form
    266,446.60/367,696.40 = 143,939.02/x
  3. Step 3: Cross multiply
    266,446.60x = 367,696.40 × 143,939.02
  4. Step 4: Simplify right side
    266,446.60x = 52,925,859,473.53
  5. Step 5: Solve for x
    x = 52,925,859,473.53/266,446.60
  6. Step 6: Final answer
    x = 198,635.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.