Home / 285,829.20-428,452.20-167,439.60

Finding the Fourth Proportional to 285,829.20, 428,452.20 and 167,439.60

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Solution

The fourth proportional to 285,829.20, 428,452.20 and 167,439.60 is: 250,988.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,829.20 : 428,452.20 = 167,439.60 : x
  2. Step 2: Convert to fraction form
    285,829.20/428,452.20 = 167,439.60/x
  3. Step 3: Cross multiply
    285,829.20x = 428,452.20 × 167,439.60
  4. Step 4: Simplify right side
    285,829.20x = 71,739,864,987.12
  5. Step 5: Solve for x
    x = 71,739,864,987.12/285,829.20
  6. Step 6: Final answer
    x = 250,988.58

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1.5x scale

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.