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Finding the Fourth Proportional to 507.68, 761.64 and 233.84

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Solution

The fourth proportional to 507.68, 761.64 and 233.84 is: 350.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    507.68 : 761.64 = 233.84 : x
  2. Step 2: Convert to fraction form
    507.68/761.64 = 233.84/x
  3. Step 3: Cross multiply
    507.68x = 761.64 × 233.84
  4. Step 4: Simplify right side
    507.68x = 178,101.90
  5. Step 5: Solve for x
    x = 178,101.90/507.68
  6. Step 6: Final answer
    x = 350.82

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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.