Home / 372,938.20-559,407.30-215,474.20

Finding the Fourth Proportional to 372,938.20, 559,407.30 and 215,474.20

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Solution

The fourth proportional to 372,938.20, 559,407.30 and 215,474.20 is: 323,211.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,938.20 : 559,407.30 = 215,474.20 : x
  2. Step 2: Convert to fraction form
    372,938.20/559,407.30 = 215,474.20/x
  3. Step 3: Cross multiply
    372,938.20x = 559,407.30 × 215,474.20
  4. Step 4: Simplify right side
    372,938.20x = 120,537,840,441.66
  5. Step 5: Solve for x
    x = 120,537,840,441.66/372,938.20
  6. Step 6: Final answer
    x = 323,211.30

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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.