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Finding the Fourth Proportional to 324,997.88, 487,507.61 and 111,763.70

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Solution

The fourth proportional to 324,997.88, 487,507.61 and 111,763.70 is: 167,649.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,997.88 : 487,507.61 = 111,763.70 : x
  2. Step 2: Convert to fraction form
    324,997.88/487,507.61 = 111,763.70/x
  3. Step 3: Cross multiply
    324,997.88x = 487,507.61 × 111,763.70
  4. Step 4: Simplify right side
    324,997.88x = 54,485,654,271.76
  5. Step 5: Solve for x
    x = 54,485,654,271.76/324,997.88
  6. Step 6: Final answer
    x = 167,649.26

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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.