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Finding the Fourth Proportional to 348.36, 482.94 and 329.87

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Solution

The fourth proportional to 348.36, 482.94 and 329.87 is: 457.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    348.36 : 482.94 = 329.87 : x
  2. Step 2: Convert to fraction form
    348.36/482.94 = 329.87/x
  3. Step 3: Cross multiply
    348.36x = 482.94 × 329.87
  4. Step 4: Simplify right side
    348.36x = 159,307.42
  5. Step 5: Solve for x
    x = 159,307.42/348.36
  6. Step 6: Final answer
    x = 457.31

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.