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Finding the Fourth Proportional to 348.93, 520.92 and 323.55

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Solution

The fourth proportional to 348.93, 520.92 and 323.55 is: 483.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    348.93 : 520.92 = 323.55 : x
  2. Step 2: Convert to fraction form
    348.93/520.92 = 323.55/x
  3. Step 3: Cross multiply
    348.93x = 520.92 × 323.55
  4. Step 4: Simplify right side
    348.93x = 168,543.67
  5. Step 5: Solve for x
    x = 168,543.67/348.93
  6. Step 6: Final answer
    x = 483.03

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.