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Finding the Fourth Proportional to 165,771.20, 248,630.40 and 54,963.20

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Solution

The fourth proportional to 165,771.20, 248,630.40 and 54,963.20 is: 82,436.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,771.20 : 248,630.40 = 54,963.20 : x
  2. Step 2: Convert to fraction form
    165,771.20/248,630.40 = 54,963.20/x
  3. Step 3: Cross multiply
    165,771.20x = 248,630.40 × 54,963.20
  4. Step 4: Simplify right side
    165,771.20x = 13,665,522,401.28
  5. Step 5: Solve for x
    x = 13,665,522,401.28/165,771.20
  6. Step 6: Final answer
    x = 82,436.05

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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.