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Finding the Fourth Proportional to 239,622.80, 330,573.96 and 144,074

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Solution

The fourth proportional to 239,622.80, 330,573.96 and 144,074 is: 198,758.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,622.80 : 330,573.96 = 144,074 : x
  2. Step 2: Convert to fraction form
    239,622.80/330,573.96 = 144,074/x
  3. Step 3: Cross multiply
    239,622.80x = 330,573.96 × 144,074
  4. Step 4: Simplify right side
    239,622.80x = 47,627,112,713.04
  5. Step 5: Solve for x
    x = 47,627,112,713.04/239,622.80
  6. Step 6: Final answer
    x = 198,758.69

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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.