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Finding the Fourth Proportional to 300,785.76, 415,084.32 and 179,932.12

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Solution

The fourth proportional to 300,785.76, 415,084.32 and 179,932.12 is: 248,306.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,785.76 : 415,084.32 = 179,932.12 : x
  2. Step 2: Convert to fraction form
    300,785.76/415,084.32 = 179,932.12/x
  3. Step 3: Cross multiply
    300,785.76x = 415,084.32 × 179,932.12
  4. Step 4: Simplify right side
    300,785.76x = 74,687,001,676.36
  5. Step 5: Solve for x
    x = 74,687,001,676.36/300,785.76
  6. Step 6: Final answer
    x = 248,306.31

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1.5x scale

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.