Home / 354,974.98-532,719.39-138,865.59

Finding the Fourth Proportional to 354,974.98, 532,719.39 and 138,865.59

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Solution

The fourth proportional to 354,974.98, 532,719.39 and 138,865.59 is: 208,398.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,974.98 : 532,719.39 = 138,865.59 : x
  2. Step 2: Convert to fraction form
    354,974.98/532,719.39 = 138,865.59/x
  3. Step 3: Cross multiply
    354,974.98x = 532,719.39 × 138,865.59
  4. Step 4: Simplify right side
    354,974.98x = 73,976,392,396.79
  5. Step 5: Solve for x
    x = 73,976,392,396.79/354,974.98
  6. Step 6: Final answer
    x = 208,398.89

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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.