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Finding the Fourth Proportional to 171,944.20, 257,989.20 and 108,812.80

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Solution

The fourth proportional to 171,944.20, 257,989.20 and 108,812.80 is: 163,265.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,944.20 : 257,989.20 = 108,812.80 : x
  2. Step 2: Convert to fraction form
    171,944.20/257,989.20 = 108,812.80/x
  3. Step 3: Cross multiply
    171,944.20x = 257,989.20 × 108,812.80
  4. Step 4: Simplify right side
    171,944.20x = 28,072,527,221.76
  5. Step 5: Solve for x
    x = 28,072,527,221.76/171,944.20
  6. Step 6: Final answer
    x = 163,265.33

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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.