Home / 240,016.80-331,105.68-155,206.56

Finding the Fourth Proportional to 240,016.80, 331,105.68 and 155,206.56

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Solution

The fourth proportional to 240,016.80, 331,105.68 and 155,206.56 is: 214,109.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,016.80 : 331,105.68 = 155,206.56 : x
  2. Step 2: Convert to fraction form
    240,016.80/331,105.68 = 155,206.56/x
  3. Step 3: Cross multiply
    240,016.80x = 331,105.68 × 155,206.56
  4. Step 4: Simplify right side
    240,016.80x = 51,389,773,589.26
  5. Step 5: Solve for x
    x = 51,389,773,589.26/240,016.80
  6. Step 6: Final answer
    x = 214,109.07

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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.