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Finding the Fourth Proportional to 443,610.74, 665,526.82 and 128,067.64

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Solution

The fourth proportional to 443,610.74, 665,526.82 and 128,067.64 is: 192,133.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,610.74 : 665,526.82 = 128,067.64 : x
  2. Step 2: Convert to fraction form
    443,610.74/665,526.82 = 128,067.64/x
  3. Step 3: Cross multiply
    443,610.74x = 665,526.82 × 128,067.64
  4. Step 4: Simplify right side
    443,610.74x = 85,232,452,760.06
  5. Step 5: Solve for x
    x = 85,232,452,760.06/443,610.74
  6. Step 6: Final answer
    x = 192,133.43

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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.