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Finding the Fourth Proportional to 239,256.80, 359,176.80 and 120,867.20

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Solution

The fourth proportional to 239,256.80, 359,176.80 and 120,867.20 is: 181,448.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,256.80 : 359,176.80 = 120,867.20 : x
  2. Step 2: Convert to fraction form
    239,256.80/359,176.80 = 120,867.20/x
  3. Step 3: Cross multiply
    239,256.80x = 359,176.80 × 120,867.20
  4. Step 4: Simplify right side
    239,256.80x = 43,412,694,120.96
  5. Step 5: Solve for x
    x = 43,412,694,120.96/239,256.80
  6. Step 6: Final answer
    x = 181,448.11

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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.