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Finding the Fourth Proportional to 307.25, 423.90 and 182.95

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Solution

The fourth proportional to 307.25, 423.90 and 182.95 is: 252.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    307.25 : 423.90 = 182.95 : x
  2. Step 2: Convert to fraction form
    307.25/423.90 = 182.95/x
  3. Step 3: Cross multiply
    307.25x = 423.90 × 182.95
  4. Step 4: Simplify right side
    307.25x = 77,552.51
  5. Step 5: Solve for x
    x = 77,552.51/307.25
  6. Step 6: Final answer
    x = 252.41

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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.