Home / 260,817.10-391,370.97-140,871.62

Finding the Fourth Proportional to 260,817.10, 391,370.97 and 140,871.62

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Solution

The fourth proportional to 260,817.10, 391,370.97 and 140,871.62 is: 211,385.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,817.10 : 391,370.97 = 140,871.62 : x
  2. Step 2: Convert to fraction form
    260,817.10/391,370.97 = 140,871.62/x
  3. Step 3: Cross multiply
    260,817.10x = 391,370.97 × 140,871.62
  4. Step 4: Simplify right side
    260,817.10x = 55,133,064,071.57
  5. Step 5: Solve for x
    x = 55,133,064,071.57/260,817.10
  6. Step 6: Final answer
    x = 211,385.93

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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.