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Finding the Fourth Proportional to 274,211.42, 411,166.40 and 84,620.07

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Solution

The fourth proportional to 274,211.42, 411,166.40 and 84,620.07 is: 126,883.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,211.42 : 411,166.40 = 84,620.07 : x
  2. Step 2: Convert to fraction form
    274,211.42/411,166.40 = 84,620.07/x
  3. Step 3: Cross multiply
    274,211.42x = 411,166.40 × 84,620.07
  4. Step 4: Simplify right side
    274,211.42x = 34,792,929,126.55
  5. Step 5: Solve for x
    x = 34,792,929,126.55/274,211.42
  6. Step 6: Final answer
    x = 126,883.59

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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.