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Finding the Fourth Proportional to 548.82, 753.33 and 488.49

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Solution

The fourth proportional to 548.82, 753.33 and 488.49 is: 670.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    548.82 : 753.33 = 488.49 : x
  2. Step 2: Convert to fraction form
    548.82/753.33 = 488.49/x
  3. Step 3: Cross multiply
    548.82x = 753.33 × 488.49
  4. Step 4: Simplify right side
    548.82x = 367,994.17
  5. Step 5: Solve for x
    x = 367,994.17/548.82
  6. Step 6: Final answer
    x = 670.52

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.