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Finding the Fourth Proportional to 547.93, 754.63 and 474.22

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Solution

The fourth proportional to 547.93, 754.63 and 474.22 is: 653.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    547.93 : 754.63 = 474.22 : x
  2. Step 2: Convert to fraction form
    547.93/754.63 = 474.22/x
  3. Step 3: Cross multiply
    547.93x = 754.63 × 474.22
  4. Step 4: Simplify right side
    547.93x = 357,860.64
  5. Step 5: Solve for x
    x = 357,860.64/547.93
  6. Step 6: Final answer
    x = 653.11

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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.