Home / 231,051.60-318,675.65-198,839.79

Finding the Fourth Proportional to 231,051.60, 318,675.65 and 198,839.79

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Solution

The fourth proportional to 231,051.60, 318,675.65 and 198,839.79 is: 274,247.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,051.60 : 318,675.65 = 198,839.79 : x
  2. Step 2: Convert to fraction form
    231,051.60/318,675.65 = 198,839.79/x
  3. Step 3: Cross multiply
    231,051.60x = 318,675.65 × 198,839.79
  4. Step 4: Simplify right side
    231,051.60x = 63,365,398,329.91
  5. Step 5: Solve for x
    x = 63,365,398,329.91/231,051.60
  6. Step 6: Final answer
    x = 274,247.82

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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.