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Finding the Fourth Proportional to 322,686.54, 445,308 and 179,445.30

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Solution

The fourth proportional to 322,686.54, 445,308 and 179,445.30 is: 247,634.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,686.54 : 445,308 = 179,445.30 : x
  2. Step 2: Convert to fraction form
    322,686.54/445,308 = 179,445.30/x
  3. Step 3: Cross multiply
    322,686.54x = 445,308 × 179,445.30
  4. Step 4: Simplify right side
    322,686.54x = 79,908,427,652.40
  5. Step 5: Solve for x
    x = 79,908,427,652.40/322,686.54
  6. Step 6: Final answer
    x = 247,634.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.