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Finding the Fourth Proportional to 656.23, 984.48 and 548.77

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Solution

The fourth proportional to 656.23, 984.48 and 548.77 is: 823.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    656.23 : 984.48 = 548.77 : x
  2. Step 2: Convert to fraction form
    656.23/984.48 = 548.77/x
  3. Step 3: Cross multiply
    656.23x = 984.48 × 548.77
  4. Step 4: Simplify right side
    656.23x = 540,250.63
  5. Step 5: Solve for x
    x = 540,250.63/656.23
  6. Step 6: Final answer
    x = 823.27

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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.