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Finding the Fourth Proportional to 523.05, 784.68 and 291.84

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Solution

The fourth proportional to 523.05, 784.68 and 291.84 is: 437.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    523.05 : 784.68 = 291.84 : x
  2. Step 2: Convert to fraction form
    523.05/784.68 = 291.84/x
  3. Step 3: Cross multiply
    523.05x = 784.68 × 291.84
  4. Step 4: Simplify right side
    523.05x = 229,001.01
  5. Step 5: Solve for x
    x = 229,001.01/523.05
  6. Step 6: Final answer
    x = 437.82

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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.