Home / 240,140.75-331,395.28-131,247.29

Finding the Fourth Proportional to 240,140.75, 331,395.28 and 131,247.29

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Solution

The fourth proportional to 240,140.75, 331,395.28 and 131,247.29 is: 181,121.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,140.75 : 331,395.28 = 131,247.29 : x
  2. Step 2: Convert to fraction form
    240,140.75/331,395.28 = 131,247.29/x
  3. Step 3: Cross multiply
    240,140.75x = 331,395.28 × 131,247.29
  4. Step 4: Simplify right side
    240,140.75x = 43,494,732,919.16
  5. Step 5: Solve for x
    x = 43,494,732,919.16/240,140.75
  6. Step 6: Final answer
    x = 181,121.84

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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.