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Finding the Fourth Proportional to 324,997.38, 487,506.86 and 111,763.20

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Solution

The fourth proportional to 324,997.38, 487,506.86 and 111,763.20 is: 167,648.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,997.38 : 487,506.86 = 111,763.20 : x
  2. Step 2: Convert to fraction form
    324,997.38/487,506.86 = 111,763.20/x
  3. Step 3: Cross multiply
    324,997.38x = 487,506.86 × 111,763.20
  4. Step 4: Simplify right side
    324,997.38x = 54,485,326,695.55
  5. Step 5: Solve for x
    x = 54,485,326,695.55/324,997.38
  6. Step 6: Final answer
    x = 167,648.51

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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.