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Finding the Fourth Proportional to 231,773.40, 347,878.80 and 143,199.90

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Solution

The fourth proportional to 231,773.40, 347,878.80 and 143,199.90 is: 214,934.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,773.40 : 347,878.80 = 143,199.90 : x
  2. Step 2: Convert to fraction form
    231,773.40/347,878.80 = 143,199.90/x
  3. Step 3: Cross multiply
    231,773.40x = 347,878.80 × 143,199.90
  4. Step 4: Simplify right side
    231,773.40x = 49,816,209,372.12
  5. Step 5: Solve for x
    x = 49,816,209,372.12/231,773.40
  6. Step 6: Final answer
    x = 214,934.97

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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.