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Finding the Fourth Proportional to 171,997.10, 257,986.54 and 53,654.89

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Solution

The fourth proportional to 171,997.10, 257,986.54 and 53,654.89 is: 80,479.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,997.10 : 257,986.54 = 53,654.89 : x
  2. Step 2: Convert to fraction form
    171,997.10/257,986.54 = 53,654.89/x
  3. Step 3: Cross multiply
    171,997.10x = 257,986.54 × 53,654.89
  4. Step 4: Simplify right side
    171,997.10x = 13,842,239,425.18
  5. Step 5: Solve for x
    x = 13,842,239,425.18/171,997.10
  6. Step 6: Final answer
    x = 80,479.49

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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.