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Finding the Fourth Proportional to 218,164.71, 300,919.30 and 141,546.93

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Solution

The fourth proportional to 218,164.71, 300,919.30 and 141,546.93 is: 195,238.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,164.71 : 300,919.30 = 141,546.93 : x
  2. Step 2: Convert to fraction form
    218,164.71/300,919.30 = 141,546.93/x
  3. Step 3: Cross multiply
    218,164.71x = 300,919.30 × 141,546.93
  4. Step 4: Simplify right side
    218,164.71x = 42,594,202,141.24
  5. Step 5: Solve for x
    x = 42,594,202,141.24/218,164.71
  6. Step 6: Final answer
    x = 195,238.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.