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Finding the Fourth Proportional to 171,375.60, 257,063.40 and 101,218.80

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Solution

The fourth proportional to 171,375.60, 257,063.40 and 101,218.80 is: 151,828.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,375.60 : 257,063.40 = 101,218.80 : x
  2. Step 2: Convert to fraction form
    171,375.60/257,063.40 = 101,218.80/x
  3. Step 3: Cross multiply
    171,375.60x = 257,063.40 × 101,218.80
  4. Step 4: Simplify right side
    171,375.60x = 26,019,648,871.92
  5. Step 5: Solve for x
    x = 26,019,648,871.92/171,375.60
  6. Step 6: Final answer
    x = 151,828.20

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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.