Home / 260,938.49-391,383.03-83,397.83

Finding the Fourth Proportional to 260,938.49, 391,383.03 and 83,397.83

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Solution

The fourth proportional to 260,938.49, 391,383.03 and 83,397.83 is: 125,088.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,938.49 : 391,383.03 = 83,397.83 : x
  2. Step 2: Convert to fraction form
    260,938.49/391,383.03 = 83,397.83/x
  3. Step 3: Cross multiply
    260,938.49x = 391,383.03 × 83,397.83
  4. Step 4: Simplify right side
    260,938.49x = 32,640,495,400.82
  5. Step 5: Solve for x
    x = 32,640,495,400.82/260,938.49
  6. Step 6: Final answer
    x = 125,088.85

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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.