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Finding the Fourth Proportional to 523.30, 784.68 and 263.02

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Solution

The fourth proportional to 523.30, 784.68 and 263.02 is: 394.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    523.30 : 784.68 = 263.02 : x
  2. Step 2: Convert to fraction form
    523.30/784.68 = 263.02/x
  3. Step 3: Cross multiply
    523.30x = 784.68 × 263.02
  4. Step 4: Simplify right side
    523.30x = 206,386.53
  5. Step 5: Solve for x
    x = 206,386.53/523.30
  6. Step 6: Final answer
    x = 394.39

Related Problems

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Double scale
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Similar ratio
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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.