Home / 240,205.97-331,484.31-131,310.78

Finding the Fourth Proportional to 240,205.97, 331,484.31 and 131,310.78

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Solution

The fourth proportional to 240,205.97, 331,484.31 and 131,310.78 is: 181,208.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,205.97 : 331,484.31 = 131,310.78 : x
  2. Step 2: Convert to fraction form
    240,205.97/331,484.31 = 131,310.78/x
  3. Step 3: Cross multiply
    240,205.97x = 331,484.31 × 131,310.78
  4. Step 4: Simplify right side
    240,205.97x = 43,527,463,461.50
  5. Step 5: Solve for x
    x = 43,527,463,461.50/240,205.97
  6. Step 6: Final answer
    x = 181,208.92

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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.