Home / 279,541.68-418,962.46-220,142.76

Finding the Fourth Proportional to 279,541.68, 418,962.46 and 220,142.76

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Solution

The fourth proportional to 279,541.68, 418,962.46 and 220,142.76 is: 329,938.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,541.68 : 418,962.46 = 220,142.76 : x
  2. Step 2: Convert to fraction form
    279,541.68/418,962.46 = 220,142.76/x
  3. Step 3: Cross multiply
    279,541.68x = 418,962.46 × 220,142.76
  4. Step 4: Simplify right side
    279,541.68x = 92,231,552,280.79
  5. Step 5: Solve for x
    x = 92,231,552,280.79/279,541.68
  6. Step 6: Final answer
    x = 329,938.46

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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.