Home / 231,860.20-347,790.30-138,548.20

Finding the Fourth Proportional to 231,860.20, 347,790.30 and 138,548.20

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Solution

The fourth proportional to 231,860.20, 347,790.30 and 138,548.20 is: 207,822.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,860.20 : 347,790.30 = 138,548.20 : x
  2. Step 2: Convert to fraction form
    231,860.20/347,790.30 = 138,548.20/x
  3. Step 3: Cross multiply
    231,860.20x = 347,790.30 × 138,548.20
  4. Step 4: Simplify right side
    231,860.20x = 48,185,720,042.46
  5. Step 5: Solve for x
    x = 48,185,720,042.46/231,860.20
  6. Step 6: Final answer
    x = 207,822.30

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1.5x scale

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.