Home / 272,266.11-408,398.36-72,587.34

Finding the Fourth Proportional to 272,266.11, 408,398.36 and 72,587.34

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Solution

The fourth proportional to 272,266.11, 408,398.36 and 72,587.34 is: 108,880.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,266.11 : 408,398.36 = 72,587.34 : x
  2. Step 2: Convert to fraction form
    272,266.11/408,398.36 = 72,587.34/x
  3. Step 3: Cross multiply
    272,266.11x = 408,398.36 × 72,587.34
  4. Step 4: Simplify right side
    272,266.11x = 29,644,550,249.83
  5. Step 5: Solve for x
    x = 29,644,550,249.83/272,266.11
  6. Step 6: Final answer
    x = 108,880.79

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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.