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Finding the Fourth Proportional to 659.37, 988.77 and 264

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Solution

The fourth proportional to 659.37, 988.77 and 264 is: 395.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    659.37 : 988.77 = 264 : x
  2. Step 2: Convert to fraction form
    659.37/988.77 = 264/x
  3. Step 3: Cross multiply
    659.37x = 988.77 × 264
  4. Step 4: Simplify right side
    659.37x = 261,035.28
  5. Step 5: Solve for x
    x = 261,035.28/659.37
  6. Step 6: Final answer
    x = 395.89

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