Home / 272,013.32-408,708.86-172,220.44

Finding the Fourth Proportional to 272,013.32, 408,708.86 and 172,220.44

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Solution

The fourth proportional to 272,013.32, 408,708.86 and 172,220.44 is: 258,766.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,013.32 : 408,708.86 = 172,220.44 : x
  2. Step 2: Convert to fraction form
    272,013.32/408,708.86 = 172,220.44/x
  3. Step 3: Cross multiply
    272,013.32x = 408,708.86 × 172,220.44
  4. Step 4: Simplify right side
    272,013.32x = 70,388,019,701.10
  5. Step 5: Solve for x
    x = 70,388,019,701.10/272,013.32
  6. Step 6: Final answer
    x = 258,766.81

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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.