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Finding the Fourth Proportional to 364.50, 503.91 and 349.20

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Solution

The fourth proportional to 364.50, 503.91 and 349.20 is: 482.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    364.50 : 503.91 = 349.20 : x
  2. Step 2: Convert to fraction form
    364.50/503.91 = 349.20/x
  3. Step 3: Cross multiply
    364.50x = 503.91 × 349.20
  4. Step 4: Simplify right side
    364.50x = 175,965.37
  5. Step 5: Solve for x
    x = 175,965.37/364.50
  6. Step 6: Final answer
    x = 482.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.