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Finding the Fourth Proportional to 171,230.40, 256,845.60 and 52,891.20

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Solution

The fourth proportional to 171,230.40, 256,845.60 and 52,891.20 is: 79,336.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,230.40 : 256,845.60 = 52,891.20 : x
  2. Step 2: Convert to fraction form
    171,230.40/256,845.60 = 52,891.20/x
  3. Step 3: Cross multiply
    171,230.40x = 256,845.60 × 52,891.20
  4. Step 4: Simplify right side
    171,230.40x = 13,584,871,998.72
  5. Step 5: Solve for x
    x = 13,584,871,998.72/171,230.40
  6. Step 6: Final answer
    x = 79,336.80

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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.