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Finding the Fourth Proportional to 527.25, 727.61 and 303.23

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Solution

The fourth proportional to 527.25, 727.61 and 303.23 is: 418.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    527.25 : 727.61 = 303.23 : x
  2. Step 2: Convert to fraction form
    527.25/727.61 = 303.23/x
  3. Step 3: Cross multiply
    527.25x = 727.61 × 303.23
  4. Step 4: Simplify right side
    527.25x = 220,628.03
  5. Step 5: Solve for x
    x = 220,628.03/527.25
  6. Step 6: Final answer
    x = 418.45

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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.