Home / 259,656.22-389,480.29-133,223.50

Finding the Fourth Proportional to 259,656.22, 389,480.29 and 133,223.50

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Solution

The fourth proportional to 259,656.22, 389,480.29 and 133,223.50 is: 199,833.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,656.22 : 389,480.29 = 133,223.50 : x
  2. Step 2: Convert to fraction form
    259,656.22/389,480.29 = 133,223.50/x
  3. Step 3: Cross multiply
    259,656.22x = 389,480.29 × 133,223.50
  4. Step 4: Simplify right side
    259,656.22x = 51,887,927,414.82
  5. Step 5: Solve for x
    x = 51,887,927,414.82/259,656.22
  6. Step 6: Final answer
    x = 199,833.18

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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.