Home / 259,677.90-389,626.20-141,434.10

Finding the Fourth Proportional to 259,677.90, 389,626.20 and 141,434.10

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Solution

The fourth proportional to 259,677.90, 389,626.20 and 141,434.10 is: 212,210.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,677.90 : 389,626.20 = 141,434.10 : x
  2. Step 2: Convert to fraction form
    259,677.90/389,626.20 = 141,434.10/x
  3. Step 3: Cross multiply
    259,677.90x = 389,626.20 × 141,434.10
  4. Step 4: Simplify right side
    259,677.90x = 55,106,430,933.42
  5. Step 5: Solve for x
    x = 55,106,430,933.42/259,677.90
  6. Step 6: Final answer
    x = 212,210.71

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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.