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Finding the Fourth Proportional to 448,620.80, 672,700.35 and 133,036.70

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Solution

The fourth proportional to 448,620.80, 672,700.35 and 133,036.70 is: 199,486.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,620.80 : 672,700.35 = 133,036.70 : x
  2. Step 2: Convert to fraction form
    448,620.80/672,700.35 = 133,036.70/x
  3. Step 3: Cross multiply
    448,620.80x = 672,700.35 × 133,036.70
  4. Step 4: Simplify right side
    448,620.80x = 89,493,834,652.85
  5. Step 5: Solve for x
    x = 89,493,834,652.85/448,620.80
  6. Step 6: Final answer
    x = 199,486.59

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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.