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Finding the Fourth Proportional to 445,357.67, 668,037.85 and 108,398.34

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Solution

The fourth proportional to 445,357.67, 668,037.85 and 108,398.34 is: 162,597.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,357.67 : 668,037.85 = 108,398.34 : x
  2. Step 2: Convert to fraction form
    445,357.67/668,037.85 = 108,398.34/x
  3. Step 3: Cross multiply
    445,357.67x = 668,037.85 × 108,398.34
  4. Step 4: Simplify right side
    445,357.67x = 72,414,193,726.17
  5. Step 5: Solve for x
    x = 72,414,193,726.17/445,357.67
  6. Step 6: Final answer
    x = 162,597.84

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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.