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Finding the Fourth Proportional to 448,660.80, 672,760.35 and 133,076.70

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Solution

The fourth proportional to 448,660.80, 672,760.35 and 133,076.70 is: 199,546.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,660.80 : 672,760.35 = 133,076.70 : x
  2. Step 2: Convert to fraction form
    448,660.80/672,760.35 = 133,076.70/x
  3. Step 3: Cross multiply
    448,660.80x = 672,760.35 × 133,076.70
  4. Step 4: Simplify right side
    448,660.80x = 89,528,727,268.85
  5. Step 5: Solve for x
    x = 89,528,727,268.85/448,660.80
  6. Step 6: Final answer
    x = 199,546.58

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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.