Home / 408,837.38-613,207.76-109,341.16

Finding the Fourth Proportional to 408,837.38, 613,207.76 and 109,341.16

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Solution

The fourth proportional to 408,837.38, 613,207.76 and 109,341.16 is: 163,998.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,837.38 : 613,207.76 = 109,341.16 : x
  2. Step 2: Convert to fraction form
    408,837.38/613,207.76 = 109,341.16/x
  3. Step 3: Cross multiply
    408,837.38x = 613,207.76 × 109,341.16
  4. Step 4: Simplify right side
    408,837.38x = 67,048,845,719.68
  5. Step 5: Solve for x
    x = 67,048,845,719.68/408,837.38
  6. Step 6: Final answer
    x = 163,998.82

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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.