Home / 260,918.10-391,355.28-83,377.44

Finding the Fourth Proportional to 260,918.10, 391,355.28 and 83,377.44

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Solution

The fourth proportional to 260,918.10, 391,355.28 and 83,377.44 is: 125,059.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,918.10 : 391,355.28 = 83,377.44 : x
  2. Step 2: Convert to fraction form
    260,918.10/391,355.28 = 83,377.44/x
  3. Step 3: Cross multiply
    260,918.10x = 391,355.28 × 83,377.44
  4. Step 4: Simplify right side
    260,918.10x = 32,630,201,376.88
  5. Step 5: Solve for x
    x = 32,630,201,376.88/260,918.10
  6. Step 6: Final answer
    x = 125,059.17

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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.