Home / 272,300.46-408,470.22-72,619.80

Finding the Fourth Proportional to 272,300.46, 408,470.22 and 72,619.80

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Solution

The fourth proportional to 272,300.46, 408,470.22 and 72,619.80 is: 108,934.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,300.46 : 408,470.22 = 72,619.80 : x
  2. Step 2: Convert to fraction form
    272,300.46/408,470.22 = 72,619.80/x
  3. Step 3: Cross multiply
    272,300.46x = 408,470.22 × 72,619.80
  4. Step 4: Simplify right side
    272,300.46x = 29,663,025,682.36
  5. Step 5: Solve for x
    x = 29,663,025,682.36/272,300.46
  6. Step 6: Final answer
    x = 108,934.91

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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.