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Finding the Fourth Proportional to 324,997.89, 487,507.62 and 111,763.70

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Solution

The fourth proportional to 324,997.89, 487,507.62 and 111,763.70 is: 167,649.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,997.89 : 487,507.62 = 111,763.70 : x
  2. Step 2: Convert to fraction form
    324,997.89/487,507.62 = 111,763.70/x
  3. Step 3: Cross multiply
    324,997.89x = 487,507.62 × 111,763.70
  4. Step 4: Simplify right side
    324,997.89x = 54,485,652,951.86
  5. Step 5: Solve for x
    x = 54,485,652,951.86/324,997.89
  6. Step 6: Final answer
    x = 167,649.25

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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.