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Finding the Fourth Proportional to 482,706.72, 666,145.92 and 267,840

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Solution

The fourth proportional to 482,706.72, 666,145.92 and 267,840 is: 369,625.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,706.72 : 666,145.92 = 267,840 : x
  2. Step 2: Convert to fraction form
    482,706.72/666,145.92 = 267,840/x
  3. Step 3: Cross multiply
    482,706.72x = 666,145.92 × 267,840
  4. Step 4: Simplify right side
    482,706.72x = 178,420,523,212.80
  5. Step 5: Solve for x
    x = 178,420,523,212.80/482,706.72
  6. Step 6: Final answer
    x = 369,625.11

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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.