Home / 285,390.20-428,150.10-167,000.60

Finding the Fourth Proportional to 285,390.20, 428,150.10 and 167,000.60

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Solution

The fourth proportional to 285,390.20, 428,150.10 and 167,000.60 is: 250,538.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,390.20 : 428,150.10 = 167,000.60 : x
  2. Step 2: Convert to fraction form
    285,390.20/428,150.10 = 167,000.60/x
  3. Step 3: Cross multiply
    285,390.20x = 428,150.10 × 167,000.60
  4. Step 4: Simplify right side
    285,390.20x = 71,501,323,590.06
  5. Step 5: Solve for x
    x = 71,501,323,590.06/285,390.20
  6. Step 6: Final answer
    x = 250,538.82

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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.