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Finding the Fourth Proportional to 225,780.80, 338,434.13 and 75,969.09

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Solution

The fourth proportional to 225,780.80, 338,434.13 and 75,969.09 is: 113,873.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,780.80 : 338,434.13 = 75,969.09 : x
  2. Step 2: Convert to fraction form
    225,780.80/338,434.13 = 75,969.09/x
  3. Step 3: Cross multiply
    225,780.80x = 338,434.13 × 75,969.09
  4. Step 4: Simplify right side
    225,780.80x = 25,710,533,070.96
  5. Step 5: Solve for x
    x = 25,710,533,070.96/225,780.80
  6. Step 6: Final answer
    x = 113,873.87

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1.5x scale

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.