Home / 240,358.03-331,657.25-138,363.80

Finding the Fourth Proportional to 240,358.03, 331,657.25 and 138,363.80

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Solution

The fourth proportional to 240,358.03, 331,657.25 and 138,363.80 is: 190,920.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,358.03 : 331,657.25 = 138,363.80 : x
  2. Step 2: Convert to fraction form
    240,358.03/331,657.25 = 138,363.80/x
  3. Step 3: Cross multiply
    240,358.03x = 331,657.25 × 138,363.80
  4. Step 4: Simplify right side
    240,358.03x = 45,889,355,057.44
  5. Step 5: Solve for x
    x = 45,889,355,057.44/240,358.03
  6. Step 6: Final answer
    x = 190,920.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.