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Finding the Fourth Proportional to 341.52, 509.32 and 308.71

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Solution

The fourth proportional to 341.52, 509.32 and 308.71 is: 460.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    341.52 : 509.32 = 308.71 : x
  2. Step 2: Convert to fraction form
    341.52/509.32 = 308.71/x
  3. Step 3: Cross multiply
    341.52x = 509.32 × 308.71
  4. Step 4: Simplify right side
    341.52x = 157,232.18
  5. Step 5: Solve for x
    x = 157,232.18/341.52
  6. Step 6: Final answer
    x = 460.39

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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.