Home / 327,769.12-491,705.52-117,402.40

Finding the Fourth Proportional to 327,769.12, 491,705.52 and 117,402.40

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Solution

The fourth proportional to 327,769.12, 491,705.52 and 117,402.40 is: 176,122.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,769.12 : 491,705.52 = 117,402.40 : x
  2. Step 2: Convert to fraction form
    327,769.12/491,705.52 = 117,402.40/x
  3. Step 3: Cross multiply
    327,769.12x = 491,705.52 × 117,402.40
  4. Step 4: Simplify right side
    327,769.12x = 57,727,408,141.25
  5. Step 5: Solve for x
    x = 57,727,408,141.25/327,769.12
  6. Step 6: Final answer
    x = 176,122.17

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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.