Home / 231,625.40-347,553.30-91,388.60

Finding the Fourth Proportional to 231,625.40, 347,553.30 and 91,388.60

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Solution

The fourth proportional to 231,625.40, 347,553.30 and 91,388.60 is: 137,128.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,625.40 : 347,553.30 = 91,388.60 : x
  2. Step 2: Convert to fraction form
    231,625.40/347,553.30 = 91,388.60/x
  3. Step 3: Cross multiply
    231,625.40x = 347,553.30 × 91,388.60
  4. Step 4: Simplify right side
    231,625.40x = 31,762,409,512.38
  5. Step 5: Solve for x
    x = 31,762,409,512.38/231,625.40
  6. Step 6: Final answer
    x = 137,128.35

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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.