Home / 240,357.86-331,680.31-131,440.58

Finding the Fourth Proportional to 240,357.86, 331,680.31 and 131,440.58

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Solution

The fourth proportional to 240,357.86, 331,680.31 and 131,440.58 is: 181,380.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,357.86 : 331,680.31 = 131,440.58 : x
  2. Step 2: Convert to fraction form
    240,357.86/331,680.31 = 131,440.58/x
  3. Step 3: Cross multiply
    240,357.86x = 331,680.31 × 131,440.58
  4. Step 4: Simplify right side
    240,357.86x = 43,596,252,320.98
  5. Step 5: Solve for x
    x = 43,596,252,320.98/240,357.86
  6. Step 6: Final answer
    x = 181,380.60

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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.