Home / 240,013.36-331,218.64-131,119.20

Finding the Fourth Proportional to 240,013.36, 331,218.64 and 131,119.20

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Solution

The fourth proportional to 240,013.36, 331,218.64 and 131,119.20 is: 180,944.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,013.36 : 331,218.64 = 131,119.20 : x
  2. Step 2: Convert to fraction form
    240,013.36/331,218.64 = 131,119.20/x
  3. Step 3: Cross multiply
    240,013.36x = 331,218.64 × 131,119.20
  4. Step 4: Simplify right side
    240,013.36x = 43,429,123,101.89
  5. Step 5: Solve for x
    x = 43,429,123,101.89/240,013.36
  6. Step 6: Final answer
    x = 180,944.61

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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.