Home / 272,490.28-408,688.25-82,904.72

Finding the Fourth Proportional to 272,490.28, 408,688.25 and 82,904.72

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Solution

The fourth proportional to 272,490.28, 408,688.25 and 82,904.72 is: 124,342.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,490.28 : 408,688.25 = 82,904.72 : x
  2. Step 2: Convert to fraction form
    272,490.28/408,688.25 = 82,904.72/x
  3. Step 3: Cross multiply
    272,490.28x = 408,688.25 × 82,904.72
  4. Step 4: Simplify right side
    272,490.28x = 33,882,182,475.58
  5. Step 5: Solve for x
    x = 33,882,182,475.58/272,490.28
  6. Step 6: Final answer
    x = 124,342.72

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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.