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Finding the Fourth Proportional to 340.52, 470.08 and 216.24

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Solution

The fourth proportional to 340.52, 470.08 and 216.24 is: 298.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    340.52 : 470.08 = 216.24 : x
  2. Step 2: Convert to fraction form
    340.52/470.08 = 216.24/x
  3. Step 3: Cross multiply
    340.52x = 470.08 × 216.24
  4. Step 4: Simplify right side
    340.52x = 101,650.10
  5. Step 5: Solve for x
    x = 101,650.10/340.52
  6. Step 6: Final answer
    x = 298.51

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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.