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Finding the Fourth Proportional to 535.02, 737.55 and 418.38

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Solution

The fourth proportional to 535.02, 737.55 and 418.38 is: 576.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    535.02 : 737.55 = 418.38 : x
  2. Step 2: Convert to fraction form
    535.02/737.55 = 418.38/x
  3. Step 3: Cross multiply
    535.02x = 737.55 × 418.38
  4. Step 4: Simplify right side
    535.02x = 308,576.17
  5. Step 5: Solve for x
    x = 308,576.17/535.02
  6. Step 6: Final answer
    x = 576.76

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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.