Home / 259,725.90-389,625.30-82,214.40

Finding the Fourth Proportional to 259,725.90, 389,625.30 and 82,214.40

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Solution

The fourth proportional to 259,725.90, 389,625.30 and 82,214.40 is: 123,333.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,725.90 : 389,625.30 = 82,214.40 : x
  2. Step 2: Convert to fraction form
    259,725.90/389,625.30 = 82,214.40/x
  3. Step 3: Cross multiply
    259,725.90x = 389,625.30 × 82,214.40
  4. Step 4: Simplify right side
    259,725.90x = 32,032,810,264.32
  5. Step 5: Solve for x
    x = 32,032,810,264.32/259,725.90
  6. Step 6: Final answer
    x = 123,333.14

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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.