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Finding the Fourth Proportional to 340.08, 468.49 and 280.82

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Solution

The fourth proportional to 340.08, 468.49 and 280.82 is: 386.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    340.08 : 468.49 = 280.82 : x
  2. Step 2: Convert to fraction form
    340.08/468.49 = 280.82/x
  3. Step 3: Cross multiply
    340.08x = 468.49 × 280.82
  4. Step 4: Simplify right side
    340.08x = 131,561.36
  5. Step 5: Solve for x
    x = 131,561.36/340.08
  6. Step 6: Final answer
    x = 386.85

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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.