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Finding the Fourth Proportional to 171,469.66, 257,204.52 and 71,575.36

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Solution

The fourth proportional to 171,469.66, 257,204.52 and 71,575.36 is: 107,363.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,469.66 : 257,204.52 = 71,575.36 : x
  2. Step 2: Convert to fraction form
    171,469.66/257,204.52 = 71,575.36/x
  3. Step 3: Cross multiply
    171,469.66x = 257,204.52 × 71,575.36
  4. Step 4: Simplify right side
    171,469.66x = 18,409,506,112.63
  5. Step 5: Solve for x
    x = 18,409,506,112.63/171,469.66
  6. Step 6: Final answer
    x = 107,363.05

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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.