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Finding the Fourth Proportional to 192,381.72, 265,560.87 and 172,203

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Solution

The fourth proportional to 192,381.72, 265,560.87 and 172,203 is: 237,706.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,381.72 : 265,560.87 = 172,203 : x
  2. Step 2: Convert to fraction form
    192,381.72/265,560.87 = 172,203/x
  3. Step 3: Cross multiply
    192,381.72x = 265,560.87 × 172,203
  4. Step 4: Simplify right side
    192,381.72x = 45,730,378,496.61
  5. Step 5: Solve for x
    x = 45,730,378,496.61/192,381.72
  6. Step 6: Final answer
    x = 237,706.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.