Home / 272,290.32-408,132.81-205,513.92

Finding the Fourth Proportional to 272,290.32, 408,132.81 and 205,513.92

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Solution

The fourth proportional to 272,290.32, 408,132.81 and 205,513.92 is: 308,042.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,290.32 : 408,132.81 = 205,513.92 : x
  2. Step 2: Convert to fraction form
    272,290.32/408,132.81 = 205,513.92/x
  3. Step 3: Cross multiply
    272,290.32x = 408,132.81 × 205,513.92
  4. Step 4: Simplify right side
    272,290.32x = 83,876,973,663.72
  5. Step 5: Solve for x
    x = 83,876,973,663.72/272,290.32
  6. Step 6: Final answer
    x = 308,042.44

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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.