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Finding the Fourth Proportional to 288,129.96, 397,671.39 and 171,850.89

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Solution

The fourth proportional to 288,129.96, 397,671.39 and 171,850.89 is: 237,185.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,129.96 : 397,671.39 = 171,850.89 : x
  2. Step 2: Convert to fraction form
    288,129.96/397,671.39 = 171,850.89/x
  3. Step 3: Cross multiply
    288,129.96x = 397,671.39 × 171,850.89
  4. Step 4: Simplify right side
    288,129.96x = 68,340,180,310.68
  5. Step 5: Solve for x
    x = 68,340,180,310.68/288,129.96
  6. Step 6: Final answer
    x = 237,185.26

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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.