Home / 231,867.80-347,817.90-91,608.20

Finding the Fourth Proportional to 231,867.80, 347,817.90 and 91,608.20

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Solution

The fourth proportional to 231,867.80, 347,817.90 and 91,608.20 is: 137,418.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,867.80 : 347,817.90 = 91,608.20 : x
  2. Step 2: Convert to fraction form
    231,867.80/347,817.90 = 91,608.20/x
  3. Step 3: Cross multiply
    231,867.80x = 347,817.90 × 91,608.20
  4. Step 4: Simplify right side
    231,867.80x = 31,862,971,746.78
  5. Step 5: Solve for x
    x = 31,862,971,746.78/231,867.80
  6. Step 6: Final answer
    x = 137,418.70

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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.