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Finding the Fourth Proportional to 307.06, 423.62 and 182.72

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Solution

The fourth proportional to 307.06, 423.62 and 182.72 is: 252.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    307.06 : 423.62 = 182.72 : x
  2. Step 2: Convert to fraction form
    307.06/423.62 = 182.72/x
  3. Step 3: Cross multiply
    307.06x = 423.62 × 182.72
  4. Step 4: Simplify right side
    307.06x = 77,403.85
  5. Step 5: Solve for x
    x = 77,403.85/307.06
  6. Step 6: Final answer
    x = 252.08

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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.