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Finding the Fourth Proportional to 339.70, 506.24 and 303.15

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Solution

The fourth proportional to 339.70, 506.24 and 303.15 is: 451.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    339.70 : 506.24 = 303.15 : x
  2. Step 2: Convert to fraction form
    339.70/506.24 = 303.15/x
  3. Step 3: Cross multiply
    339.70x = 506.24 × 303.15
  4. Step 4: Simplify right side
    339.70x = 153,466.66
  5. Step 5: Solve for x
    x = 153,466.66/339.70
  6. Step 6: Final answer
    x = 451.77

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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.