Home / 272,001.24-408,001.32-72,321.66

Finding the Fourth Proportional to 272,001.24, 408,001.32 and 72,321.66

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Solution

The fourth proportional to 272,001.24, 408,001.32 and 72,321.66 is: 108,482.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,001.24 : 408,001.32 = 72,321.66 : x
  2. Step 2: Convert to fraction form
    272,001.24/408,001.32 = 72,321.66/x
  3. Step 3: Cross multiply
    272,001.24x = 408,001.32 × 72,321.66
  4. Step 4: Simplify right side
    272,001.24x = 29,507,332,744.59
  5. Step 5: Solve for x
    x = 29,507,332,744.59/272,001.24
  6. Step 6: Final answer
    x = 108,482.35

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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.