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Finding the Fourth Proportional to 340.29, 469.76 and 229.83

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Solution

The fourth proportional to 340.29, 469.76 and 229.83 is: 317.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    340.29 : 469.76 = 229.83 : x
  2. Step 2: Convert to fraction form
    340.29/469.76 = 229.83/x
  3. Step 3: Cross multiply
    340.29x = 469.76 × 229.83
  4. Step 4: Simplify right side
    340.29x = 107,964.94
  5. Step 5: Solve for x
    x = 107,964.94/340.29
  6. Step 6: Final answer
    x = 317.27

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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.