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Finding the Fourth Proportional to 345,393.72, 517,740.66 and 167,751

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Solution

The fourth proportional to 345,393.72, 517,740.66 and 167,751 is: 251,456.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,393.72 : 517,740.66 = 167,751 : x
  2. Step 2: Convert to fraction form
    345,393.72/517,740.66 = 167,751/x
  3. Step 3: Cross multiply
    345,393.72x = 517,740.66 × 167,751
  4. Step 4: Simplify right side
    345,393.72x = 86,851,513,455.66
  5. Step 5: Solve for x
    x = 86,851,513,455.66/345,393.72
  6. Step 6: Final answer
    x = 251,456.55

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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.