Home / 272,193.12-408,267.36-172,061.28

Finding the Fourth Proportional to 272,193.12, 408,267.36 and 172,061.28

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Solution

The fourth proportional to 272,193.12, 408,267.36 and 172,061.28 is: 258,077.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,193.12 : 408,267.36 = 172,061.28 : x
  2. Step 2: Convert to fraction form
    272,193.12/408,267.36 = 172,061.28/x
  3. Step 3: Cross multiply
    272,193.12x = 408,267.36 × 172,061.28
  4. Step 4: Simplify right side
    272,193.12x = 70,247,004,543.82
  5. Step 5: Solve for x
    x = 70,247,004,543.82/272,193.12
  6. Step 6: Final answer
    x = 258,077.81

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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.