Home / 215,823.60-323,828.80-115,867.16

Finding the Fourth Proportional to 215,823.60, 323,828.80 and 115,867.16

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Solution

The fourth proportional to 215,823.60, 323,828.80 and 115,867.16 is: 173,850.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,823.60 : 323,828.80 = 115,867.16 : x
  2. Step 2: Convert to fraction form
    215,823.60/323,828.80 = 115,867.16/x
  3. Step 3: Cross multiply
    215,823.60x = 323,828.80 × 115,867.16
  4. Step 4: Simplify right side
    215,823.60x = 37,521,123,382.21
  5. Step 5: Solve for x
    x = 37,521,123,382.21/215,823.60
  6. Step 6: Final answer
    x = 173,850.88

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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.