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Finding the Fourth Proportional to 323,614.72, 485,516.76 and 165,953.44

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Solution

The fourth proportional to 323,614.72, 485,516.76 and 165,953.44 is: 248,978.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,614.72 : 485,516.76 = 165,953.44 : x
  2. Step 2: Convert to fraction form
    323,614.72/485,516.76 = 165,953.44/x
  3. Step 3: Cross multiply
    323,614.72x = 485,516.76 × 165,953.44
  4. Step 4: Simplify right side
    323,614.72x = 80,573,176,499.65
  5. Step 5: Solve for x
    x = 80,573,176,499.65/323,614.72
  6. Step 6: Final answer
    x = 248,978.71

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1.5x scale

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.