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Finding the Fourth Proportional to 564.88, 846.96 and 256.72

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Solution

The fourth proportional to 564.88, 846.96 and 256.72 is: 384.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    564.88 : 846.96 = 256.72 : x
  2. Step 2: Convert to fraction form
    564.88/846.96 = 256.72/x
  3. Step 3: Cross multiply
    564.88x = 846.96 × 256.72
  4. Step 4: Simplify right side
    564.88x = 217,431.57
  5. Step 5: Solve for x
    x = 217,431.57/564.88
  6. Step 6: Final answer
    x = 384.92

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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.