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Finding the Fourth Proportional to 347.80, 483.18 and 344.62

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Solution

The fourth proportional to 347.80, 483.18 and 344.62 is: 478.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    347.80 : 483.18 = 344.62 : x
  2. Step 2: Convert to fraction form
    347.80/483.18 = 344.62/x
  3. Step 3: Cross multiply
    347.80x = 483.18 × 344.62
  4. Step 4: Simplify right side
    347.80x = 166,513.84
  5. Step 5: Solve for x
    x = 166,513.84/347.80
  6. Step 6: Final answer
    x = 478.77

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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.