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Finding the Fourth Proportional to 339.36, 508.08 and 236.40

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Solution

The fourth proportional to 339.36, 508.08 and 236.40 is: 353.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    339.36 : 508.08 = 236.40 : x
  2. Step 2: Convert to fraction form
    339.36/508.08 = 236.40/x
  3. Step 3: Cross multiply
    339.36x = 508.08 × 236.40
  4. Step 4: Simplify right side
    339.36x = 120,110.11
  5. Step 5: Solve for x
    x = 120,110.11/339.36
  6. Step 6: Final answer
    x = 353.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.