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Finding the Fourth Proportional to 408,860.32, 613,247.34 and 109,371.12

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Solution

The fourth proportional to 408,860.32, 613,247.34 and 109,371.12 is: 164,045.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,860.32 : 613,247.34 = 109,371.12 : x
  2. Step 2: Convert to fraction form
    408,860.32/613,247.34 = 109,371.12/x
  3. Step 3: Cross multiply
    408,860.32x = 613,247.34 × 109,371.12
  4. Step 4: Simplify right side
    408,860.32x = 67,071,548,412.82
  5. Step 5: Solve for x
    x = 67,071,548,412.82/408,860.32
  6. Step 6: Final answer
    x = 164,045.14

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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.