Home / 230,860.68-318,586.46-128,880.24

Finding the Fourth Proportional to 230,860.68, 318,586.46 and 128,880.24

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Solution

The fourth proportional to 230,860.68, 318,586.46 and 128,880.24 is: 177,854.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,860.68 : 318,586.46 = 128,880.24 : x
  2. Step 2: Convert to fraction form
    230,860.68/318,586.46 = 128,880.24/x
  3. Step 3: Cross multiply
    230,860.68x = 318,586.46 × 128,880.24
  4. Step 4: Simplify right side
    230,860.68x = 41,059,499,425.55
  5. Step 5: Solve for x
    x = 41,059,499,425.55/230,860.68
  6. Step 6: Final answer
    x = 177,854.02

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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.