Home / 259,592.24-389,386.60-139,705.61

Finding the Fourth Proportional to 259,592.24, 389,386.60 and 139,705.61

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Solution

The fourth proportional to 259,592.24, 389,386.60 and 139,705.61 is: 209,557.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,592.24 : 389,386.60 = 139,705.61 : x
  2. Step 2: Convert to fraction form
    259,592.24/389,386.60 = 139,705.61/x
  3. Step 3: Cross multiply
    259,592.24x = 389,386.60 × 139,705.61
  4. Step 4: Simplify right side
    259,592.24x = 54,399,490,182.63
  5. Step 5: Solve for x
    x = 54,399,490,182.63/259,592.24
  6. Step 6: Final answer
    x = 209,557.46

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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.