Home / 240,208.97-331,488.45-131,313.78

Finding the Fourth Proportional to 240,208.97, 331,488.45 and 131,313.78

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Solution

The fourth proportional to 240,208.97, 331,488.45 and 131,313.78 is: 181,213.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,208.97 : 331,488.45 = 131,313.78 : x
  2. Step 2: Convert to fraction form
    240,208.97/331,488.45 = 131,313.78/x
  3. Step 3: Cross multiply
    240,208.97x = 331,488.45 × 131,313.78
  4. Step 4: Simplify right side
    240,208.97x = 43,529,001,395.84
  5. Step 5: Solve for x
    x = 43,529,001,395.84/240,208.97
  6. Step 6: Final answer
    x = 181,213.06

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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.