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Finding the Fourth Proportional to 272,013.66, 408,019.77 and 72,334.08

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Solution

The fourth proportional to 272,013.66, 408,019.77 and 72,334.08 is: 108,500.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,013.66 : 408,019.77 = 72,334.08 : x
  2. Step 2: Convert to fraction form
    272,013.66/408,019.77 = 72,334.08/x
  3. Step 3: Cross multiply
    272,013.66x = 408,019.77 × 72,334.08
  4. Step 4: Simplify right side
    272,013.66x = 29,513,734,684.76
  5. Step 5: Solve for x
    x = 29,513,734,684.76/272,013.66
  6. Step 6: Final answer
    x = 108,500.93

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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.