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Finding the Fourth Proportional to 342,561.97, 472,696.07 and 197,388.91

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Solution

The fourth proportional to 342,561.97, 472,696.07 and 197,388.91 is: 272,373.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,561.97 : 472,696.07 = 197,388.91 : x
  2. Step 2: Convert to fraction form
    342,561.97/472,696.07 = 197,388.91/x
  3. Step 3: Cross multiply
    342,561.97x = 472,696.07 × 197,388.91
  4. Step 4: Simplify right side
    342,561.97x = 93,304,961,330.32
  5. Step 5: Solve for x
    x = 93,304,961,330.32/342,561.97
  6. Step 6: Final answer
    x = 272,373.96

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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.