Home / 260,896.80-391,345.20-149,997.60

Finding the Fourth Proportional to 260,896.80, 391,345.20 and 149,997.60

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Solution

The fourth proportional to 260,896.80, 391,345.20 and 149,997.60 is: 224,996.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,896.80 : 391,345.20 = 149,997.60 : x
  2. Step 2: Convert to fraction form
    260,896.80/391,345.20 = 149,997.60/x
  3. Step 3: Cross multiply
    260,896.80x = 391,345.20 × 149,997.60
  4. Step 4: Simplify right side
    260,896.80x = 58,700,840,771.52
  5. Step 5: Solve for x
    x = 58,700,840,771.52/260,896.80
  6. Step 6: Final answer
    x = 224,996.40

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1.5x scale

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.