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Finding the Fourth Proportional to 339.03, 508.56 and 95.57

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Solution

The fourth proportional to 339.03, 508.56 and 95.57 is: 143.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    339.03 : 508.56 = 95.57 : x
  2. Step 2: Convert to fraction form
    339.03/508.56 = 95.57/x
  3. Step 3: Cross multiply
    339.03x = 508.56 × 95.57
  4. Step 4: Simplify right side
    339.03x = 48,603.22
  5. Step 5: Solve for x
    x = 48,603.22/339.03
  6. Step 6: Final answer
    x = 143.36

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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.