Home / 259,435.90-389,299.65-141,115.51

Finding the Fourth Proportional to 259,435.90, 389,299.65 and 141,115.51

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Solution

The fourth proportional to 259,435.90, 389,299.65 and 141,115.51 is: 211,752.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,435.90 : 389,299.65 = 141,115.51 : x
  2. Step 2: Convert to fraction form
    259,435.90/389,299.65 = 141,115.51/x
  3. Step 3: Cross multiply
    259,435.90x = 389,299.65 × 141,115.51
  4. Step 4: Simplify right side
    259,435.90x = 54,936,218,652.57
  5. Step 5: Solve for x
    x = 54,936,218,652.57/259,435.90
  6. Step 6: Final answer
    x = 211,752.57

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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.