Home / 279,541.80-385,500.60-187,868.16

Finding the Fourth Proportional to 279,541.80, 385,500.60 and 187,868.16

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Solution

The fourth proportional to 279,541.80, 385,500.60 and 187,868.16 is: 259,078.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,541.80 : 385,500.60 = 187,868.16 : x
  2. Step 2: Convert to fraction form
    279,541.80/385,500.60 = 187,868.16/x
  3. Step 3: Cross multiply
    279,541.80x = 385,500.60 × 187,868.16
  4. Step 4: Simplify right side
    279,541.80x = 72,423,288,400.90
  5. Step 5: Solve for x
    x = 72,423,288,400.90/279,541.80
  6. Step 6: Final answer
    x = 259,078.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.