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Finding the Fourth Proportional to 171,104.40, 256,656.60 and 71,231.40

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Solution

The fourth proportional to 171,104.40, 256,656.60 and 71,231.40 is: 106,847.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,104.40 : 256,656.60 = 71,231.40 : x
  2. Step 2: Convert to fraction form
    171,104.40/256,656.60 = 71,231.40/x
  3. Step 3: Cross multiply
    171,104.40x = 256,656.60 × 71,231.40
  4. Step 4: Simplify right side
    171,104.40x = 18,282,008,937.24
  5. Step 5: Solve for x
    x = 18,282,008,937.24/171,104.40
  6. Step 6: Final answer
    x = 106,847.10

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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.