Home / 252,231.02-378,401.88-74,751.92

Finding the Fourth Proportional to 252,231.02, 378,401.88 and 74,751.92

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Solution

The fourth proportional to 252,231.02, 378,401.88 and 74,751.92 is: 112,144.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,231.02 : 378,401.88 = 74,751.92 : x
  2. Step 2: Convert to fraction form
    252,231.02/378,401.88 = 74,751.92/x
  3. Step 3: Cross multiply
    252,231.02x = 378,401.88 × 74,751.92
  4. Step 4: Simplify right side
    252,231.02x = 28,286,267,061.61
  5. Step 5: Solve for x
    x = 28,286,267,061.61/252,231.02
  6. Step 6: Final answer
    x = 112,144.28

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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.