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Finding the Fourth Proportional to 330,540.57, 456,144.75 and 187,327.71

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Solution

The fourth proportional to 330,540.57, 456,144.75 and 187,327.71 is: 258,511.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,540.57 : 456,144.75 = 187,327.71 : x
  2. Step 2: Convert to fraction form
    330,540.57/456,144.75 = 187,327.71/x
  3. Step 3: Cross multiply
    330,540.57x = 456,144.75 × 187,327.71
  4. Step 4: Simplify right side
    330,540.57x = 85,448,551,446.02
  5. Step 5: Solve for x
    x = 85,448,551,446.02/330,540.57
  6. Step 6: Final answer
    x = 258,511.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.