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Finding the Fourth Proportional to 171,646, 257,469.36 and 73,150

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Solution

The fourth proportional to 171,646, 257,469.36 and 73,150 is: 109,725.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,646 : 257,469.36 = 73,150 : x
  2. Step 2: Convert to fraction form
    171,646/257,469.36 = 73,150/x
  3. Step 3: Cross multiply
    171,646x = 257,469.36 × 73,150
  4. Step 4: Simplify right side
    171,646x = 18,833,883,684
  5. Step 5: Solve for x
    x = 18,833,883,684/171,646
  6. Step 6: Final answer
    x = 109,725.15

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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.