Home / 260,062.11-389,982.40-102,179.81

Finding the Fourth Proportional to 260,062.11, 389,982.40 and 102,179.81

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Solution

The fourth proportional to 260,062.11, 389,982.40 and 102,179.81 is: 153,226.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,062.11 : 389,982.40 = 102,179.81 : x
  2. Step 2: Convert to fraction form
    260,062.11/389,982.40 = 102,179.81/x
  3. Step 3: Cross multiply
    260,062.11x = 389,982.40 × 102,179.81
  4. Step 4: Simplify right side
    260,062.11x = 39,848,328,254.85
  5. Step 5: Solve for x
    x = 39,848,328,254.85/260,062.11
  6. Step 6: Final answer
    x = 153,226.20

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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.