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Finding the Fourth Proportional to 547.30, 753.37 and 476.35

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Solution

The fourth proportional to 547.30, 753.37 and 476.35 is: 655.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    547.30 : 753.37 = 476.35 : x
  2. Step 2: Convert to fraction form
    547.30/753.37 = 476.35/x
  3. Step 3: Cross multiply
    547.30x = 753.37 × 476.35
  4. Step 4: Simplify right side
    547.30x = 358,867.80
  5. Step 5: Solve for x
    x = 358,867.80/547.30
  6. Step 6: Final answer
    x = 655.71

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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.