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Finding the Fourth Proportional to 324,939.56, 487,364.24 and 100,307.39

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Solution

The fourth proportional to 324,939.56, 487,364.24 and 100,307.39 is: 150,447.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,939.56 : 487,364.24 = 100,307.39 : x
  2. Step 2: Convert to fraction form
    324,939.56/487,364.24 = 100,307.39/x
  3. Step 3: Cross multiply
    324,939.56x = 487,364.24 × 100,307.39
  4. Step 4: Simplify right side
    324,939.56x = 48,886,232,707.68
  5. Step 5: Solve for x
    x = 48,886,232,707.68/324,939.56
  6. Step 6: Final answer
    x = 150,447.16

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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.