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Finding the Fourth Proportional to 523.02, 784.66 and 262.38

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Solution

The fourth proportional to 523.02, 784.66 and 262.38 is: 393.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    523.02 : 784.66 = 262.38 : x
  2. Step 2: Convert to fraction form
    523.02/784.66 = 262.38/x
  3. Step 3: Cross multiply
    523.02x = 784.66 × 262.38
  4. Step 4: Simplify right side
    523.02x = 205,875.25
  5. Step 5: Solve for x
    x = 205,875.25/523.02
  6. Step 6: Final answer
    x = 393.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.