Home / 400,591.13-552,815.75-221,743.13

Finding the Fourth Proportional to 400,591.13, 552,815.75 and 221,743.13

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Solution

The fourth proportional to 400,591.13, 552,815.75 and 221,743.13 is: 306,005.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,591.13 : 552,815.75 = 221,743.13 : x
  2. Step 2: Convert to fraction form
    400,591.13/552,815.75 = 221,743.13/x
  3. Step 3: Cross multiply
    400,591.13x = 552,815.75 × 221,743.13
  4. Step 4: Simplify right side
    400,591.13x = 122,583,092,508.58
  5. Step 5: Solve for x
    x = 122,583,092,508.58/400,591.13
  6. Step 6: Final answer
    x = 306,005.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.