Home / 240,128.62-331,378.52-131,235.18

Finding the Fourth Proportional to 240,128.62, 331,378.52 and 131,235.18

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Solution

The fourth proportional to 240,128.62, 331,378.52 and 131,235.18 is: 181,105.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,128.62 : 331,378.52 = 131,235.18 : x
  2. Step 2: Convert to fraction form
    240,128.62/331,378.52 = 131,235.18/x
  3. Step 3: Cross multiply
    240,128.62x = 331,378.52 × 131,235.18
  4. Step 4: Simplify right side
    240,128.62x = 43,488,519,720.33
  5. Step 5: Solve for x
    x = 43,488,519,720.33/240,128.62
  6. Step 6: Final answer
    x = 181,105.11

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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.