Home / 215,456.40-322,980.12-75,177.36

Finding the Fourth Proportional to 215,456.40, 322,980.12 and 75,177.36

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Solution

The fourth proportional to 215,456.40, 322,980.12 and 75,177.36 is: 112,694.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,456.40 : 322,980.12 = 75,177.36 : x
  2. Step 2: Convert to fraction form
    215,456.40/322,980.12 = 75,177.36/x
  3. Step 3: Cross multiply
    215,456.40x = 322,980.12 × 75,177.36
  4. Step 4: Simplify right side
    215,456.40x = 24,280,792,754.08
  5. Step 5: Solve for x
    x = 24,280,792,754.08/215,456.40
  6. Step 6: Final answer
    x = 112,694.69

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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.