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Finding the Fourth Proportional to 656.35, 983.86 and 245.27

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Solution

The fourth proportional to 656.35, 983.86 and 245.27 is: 367.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    656.35 : 983.86 = 245.27 : x
  2. Step 2: Convert to fraction form
    656.35/983.86 = 245.27/x
  3. Step 3: Cross multiply
    656.35x = 983.86 × 245.27
  4. Step 4: Simplify right side
    656.35x = 241,311.34
  5. Step 5: Solve for x
    x = 241,311.34/656.35
  6. Step 6: Final answer
    x = 367.66

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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.