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Finding the Fourth Proportional to 239,149.48, 330,014.20 and 131,717.20

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Solution

The fourth proportional to 239,149.48, 330,014.20 and 131,717.20 is: 181,763.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,149.48 : 330,014.20 = 131,717.20 : x
  2. Step 2: Convert to fraction form
    239,149.48/330,014.20 = 131,717.20/x
  3. Step 3: Cross multiply
    239,149.48x = 330,014.20 × 131,717.20
  4. Step 4: Simplify right side
    239,149.48x = 43,468,546,559.74
  5. Step 5: Solve for x
    x = 43,468,546,559.74/239,149.48
  6. Step 6: Final answer
    x = 181,763.09

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1.5x scale

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.