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Finding the Fourth Proportional to 448,485.30, 672,497.10 and 132,901.20

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Solution

The fourth proportional to 448,485.30, 672,497.10 and 132,901.20 is: 199,283.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,485.30 : 672,497.10 = 132,901.20 : x
  2. Step 2: Convert to fraction form
    448,485.30/672,497.10 = 132,901.20/x
  3. Step 3: Cross multiply
    448,485.30x = 672,497.10 × 132,901.20
  4. Step 4: Simplify right side
    448,485.30x = 89,375,671,586.52
  5. Step 5: Solve for x
    x = 89,375,671,586.52/448,485.30
  6. Step 6: Final answer
    x = 199,283.39

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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.