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Finding the Fourth Proportional to 285,077.01, 428,169.10 and 209,900.24

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Solution

The fourth proportional to 285,077.01, 428,169.10 and 209,900.24 is: 315,257.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,077.01 : 428,169.10 = 209,900.24 : x
  2. Step 2: Convert to fraction form
    285,077.01/428,169.10 = 209,900.24/x
  3. Step 3: Cross multiply
    285,077.01x = 428,169.10 × 209,900.24
  4. Step 4: Simplify right side
    285,077.01x = 89,872,796,850.58
  5. Step 5: Solve for x
    x = 89,872,796,850.58/285,077.01
  6. Step 6: Final answer
    x = 315,257.96

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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.