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Finding the Fourth Proportional to 259,446.20, 389,169.30 and 166,134.20

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Solution

The fourth proportional to 259,446.20, 389,169.30 and 166,134.20 is: 249,201.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,446.20 : 389,169.30 = 166,134.20 : x
  2. Step 2: Convert to fraction form
    259,446.20/389,169.30 = 166,134.20/x
  3. Step 3: Cross multiply
    259,446.20x = 389,169.30 × 166,134.20
  4. Step 4: Simplify right side
    259,446.20x = 64,654,330,320.06
  5. Step 5: Solve for x
    x = 64,654,330,320.06/259,446.20
  6. Step 6: Final answer
    x = 249,201.30

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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.