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Finding the Fourth Proportional to 348.93, 484.80 and 344.57

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Solution

The fourth proportional to 348.93, 484.80 and 344.57 is: 478.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    348.93 : 484.80 = 344.57 : x
  2. Step 2: Convert to fraction form
    348.93/484.80 = 344.57/x
  3. Step 3: Cross multiply
    348.93x = 484.80 × 344.57
  4. Step 4: Simplify right side
    348.93x = 167,045.11
  5. Step 5: Solve for x
    x = 167,045.11/348.93
  6. Step 6: Final answer
    x = 478.74

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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.