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Finding the Fourth Proportional to 328,680.72, 453,706.92 and 192,834

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Solution

The fourth proportional to 328,680.72, 453,706.92 and 192,834 is: 266,185.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,680.72 : 453,706.92 = 192,834 : x
  2. Step 2: Convert to fraction form
    328,680.72/453,706.92 = 192,834/x
  3. Step 3: Cross multiply
    328,680.72x = 453,706.92 × 192,834
  4. Step 4: Simplify right side
    328,680.72x = 87,490,120,211.28
  5. Step 5: Solve for x
    x = 87,490,120,211.28/328,680.72
  6. Step 6: Final answer
    x = 266,185.74

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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.