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Finding the Fourth Proportional to 342,960.38, 473,127.78 and 222,142.02

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Solution

The fourth proportional to 342,960.38, 473,127.78 and 222,142.02 is: 306,453.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,960.38 : 473,127.78 = 222,142.02 : x
  2. Step 2: Convert to fraction form
    342,960.38/473,127.78 = 222,142.02/x
  3. Step 3: Cross multiply
    342,960.38x = 473,127.78 × 222,142.02
  4. Step 4: Simplify right side
    342,960.38x = 105,101,560,767.32
  5. Step 5: Solve for x
    x = 105,101,560,767.32/342,960.38
  6. Step 6: Final answer
    x = 306,453.94

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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.