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Finding the Fourth Proportional to 508.88, 702.03 and 338.58

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Solution

The fourth proportional to 508.88, 702.03 and 338.58 is: 467.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    508.88 : 702.03 = 338.58 : x
  2. Step 2: Convert to fraction form
    508.88/702.03 = 338.58/x
  3. Step 3: Cross multiply
    508.88x = 702.03 × 338.58
  4. Step 4: Simplify right side
    508.88x = 237,693.32
  5. Step 5: Solve for x
    x = 237,693.32/508.88
  6. Step 6: Final answer
    x = 467.09

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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.