Home / 231,738.90-347,608.35-91,479.30

Finding the Fourth Proportional to 231,738.90, 347,608.35 and 91,479.30

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Solution

The fourth proportional to 231,738.90, 347,608.35 and 91,479.30 is: 137,218.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,738.90 : 347,608.35 = 91,479.30 : x
  2. Step 2: Convert to fraction form
    231,738.90/347,608.35 = 91,479.30/x
  3. Step 3: Cross multiply
    231,738.90x = 347,608.35 × 91,479.30
  4. Step 4: Simplify right side
    231,738.90x = 31,798,968,532.16
  5. Step 5: Solve for x
    x = 31,798,968,532.16/231,738.90
  6. Step 6: Final answer
    x = 137,218.95

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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.