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Finding the Fourth Proportional to 239,989.44, 360,034.80 and 90,230.88

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Solution

The fourth proportional to 239,989.44, 360,034.80 and 90,230.88 is: 135,365.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,989.44 : 360,034.80 = 90,230.88 : x
  2. Step 2: Convert to fraction form
    239,989.44/360,034.80 = 90,230.88/x
  3. Step 3: Cross multiply
    239,989.44x = 360,034.80 × 90,230.88
  4. Step 4: Simplify right side
    239,989.44x = 32,486,256,834.62
  5. Step 5: Solve for x
    x = 32,486,256,834.62/239,989.44
  6. Step 6: Final answer
    x = 135,365.36

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1.5x scale

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.