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Finding the Fourth Proportional to 340.41, 508.53 and 328.26

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Solution

The fourth proportional to 340.41, 508.53 and 328.26 is: 490.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    340.41 : 508.53 = 328.26 : x
  2. Step 2: Convert to fraction form
    340.41/508.53 = 328.26/x
  3. Step 3: Cross multiply
    340.41x = 508.53 × 328.26
  4. Step 4: Simplify right side
    340.41x = 166,930.06
  5. Step 5: Solve for x
    x = 166,930.06/340.41
  6. Step 6: Final answer
    x = 490.38

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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.