Home / 448,455.30-672,452.10-132,871.20

Finding the Fourth Proportional to 448,455.30, 672,452.10 and 132,871.20

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Solution

The fourth proportional to 448,455.30, 672,452.10 and 132,871.20 is: 199,238.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,455.30 : 672,452.10 = 132,871.20 : x
  2. Step 2: Convert to fraction form
    448,455.30/672,452.10 = 132,871.20/x
  3. Step 3: Cross multiply
    448,455.30x = 672,452.10 × 132,871.20
  4. Step 4: Simplify right side
    448,455.30x = 89,349,517,469.52
  5. Step 5: Solve for x
    x = 89,349,517,469.52/448,455.30
  6. Step 6: Final answer
    x = 199,238.40

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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.