Home / 230,839.48-318,557.14-128,859.04

Finding the Fourth Proportional to 230,839.48, 318,557.14 and 128,859.04

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Solution

The fourth proportional to 230,839.48, 318,557.14 and 128,859.04 is: 177,824.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,839.48 : 318,557.14 = 128,859.04 : x
  2. Step 2: Convert to fraction form
    230,839.48/318,557.14 = 128,859.04/x
  3. Step 3: Cross multiply
    230,839.48x = 318,557.14 × 128,859.04
  4. Step 4: Simplify right side
    230,839.48x = 41,048,967,245.55
  5. Step 5: Solve for x
    x = 41,048,967,245.55/230,839.48
  6. Step 6: Final answer
    x = 177,824.73

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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.