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Finding the Fourth Proportional to 547.02, 755.15 and 373.28

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Solution

The fourth proportional to 547.02, 755.15 and 373.28 is: 515.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    547.02 : 755.15 = 373.28 : x
  2. Step 2: Convert to fraction form
    547.02/755.15 = 373.28/x
  3. Step 3: Cross multiply
    547.02x = 755.15 × 373.28
  4. Step 4: Simplify right side
    547.02x = 281,876.75
  5. Step 5: Solve for x
    x = 281,876.75/547.02
  6. Step 6: Final answer
    x = 515.30

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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.