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Finding the Fourth Proportional to 348.29, 519.46 and 342.93

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Solution

The fourth proportional to 348.29, 519.46 and 342.93 is: 511.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    348.29 : 519.46 = 342.93 : x
  2. Step 2: Convert to fraction form
    348.29/519.46 = 342.93/x
  3. Step 3: Cross multiply
    348.29x = 519.46 × 342.93
  4. Step 4: Simplify right side
    348.29x = 178,136.70
  5. Step 5: Solve for x
    x = 178,136.70/348.29
  6. Step 6: Final answer
    x = 511.47

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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.