Home / 240,855.81-361,170.57-139,682.61

Finding the Fourth Proportional to 240,855.81, 361,170.57 and 139,682.61

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Solution

The fourth proportional to 240,855.81, 361,170.57 and 139,682.61 is: 209,458.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,855.81 : 361,170.57 = 139,682.61 : x
  2. Step 2: Convert to fraction form
    240,855.81/361,170.57 = 139,682.61/x
  3. Step 3: Cross multiply
    240,855.81x = 361,170.57 × 139,682.61
  4. Step 4: Simplify right side
    240,855.81x = 50,449,247,872.79
  5. Step 5: Solve for x
    x = 50,449,247,872.79/240,855.81
  6. Step 6: Final answer
    x = 209,458.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.