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Finding the Fourth Proportional to 341.27, 510.68 and 318.39

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Solution

The fourth proportional to 341.27, 510.68 and 318.39 is: 476.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    341.27 : 510.68 = 318.39 : x
  2. Step 2: Convert to fraction form
    341.27/510.68 = 318.39/x
  3. Step 3: Cross multiply
    341.27x = 510.68 × 318.39
  4. Step 4: Simplify right side
    341.27x = 162,595.41
  5. Step 5: Solve for x
    x = 162,595.41/341.27
  6. Step 6: Final answer
    x = 476.44

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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.