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Finding the Fourth Proportional to 548.64, 757.08 and 529.98

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Solution

The fourth proportional to 548.64, 757.08 and 529.98 is: 731.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    548.64 : 757.08 = 529.98 : x
  2. Step 2: Convert to fraction form
    548.64/757.08 = 529.98/x
  3. Step 3: Cross multiply
    548.64x = 757.08 × 529.98
  4. Step 4: Simplify right side
    548.64x = 401,237.26
  5. Step 5: Solve for x
    x = 401,237.26/548.64
  6. Step 6: Final answer
    x = 731.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.