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Finding the Fourth Proportional to 239,498.64, 330,503.76 and 132,078.60

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Solution

The fourth proportional to 239,498.64, 330,503.76 and 132,078.60 is: 182,266.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,498.64 : 330,503.76 = 132,078.60 : x
  2. Step 2: Convert to fraction form
    239,498.64/330,503.76 = 132,078.60/x
  3. Step 3: Cross multiply
    239,498.64x = 330,503.76 × 132,078.60
  4. Step 4: Simplify right side
    239,498.64x = 43,652,473,915.54
  5. Step 5: Solve for x
    x = 43,652,473,915.54/239,498.64
  6. Step 6: Final answer
    x = 182,266.06

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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.