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Finding the Fourth Proportional to 341.67, 470.67 and 286.41

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Solution

The fourth proportional to 341.67, 470.67 and 286.41 is: 394.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    341.67 : 470.67 = 286.41 : x
  2. Step 2: Convert to fraction form
    341.67/470.67 = 286.41/x
  3. Step 3: Cross multiply
    341.67x = 470.67 × 286.41
  4. Step 4: Simplify right side
    341.67x = 134,804.59
  5. Step 5: Solve for x
    x = 134,804.59/341.67
  6. Step 6: Final answer
    x = 394.55

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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.