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Finding the Fourth Proportional to 473.54, 709.20 and 451.22

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Solution

The fourth proportional to 473.54, 709.20 and 451.22 is: 675.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    473.54 : 709.20 = 451.22 : x
  2. Step 2: Convert to fraction form
    473.54/709.20 = 451.22/x
  3. Step 3: Cross multiply
    473.54x = 709.20 × 451.22
  4. Step 4: Simplify right side
    473.54x = 320,005.22
  5. Step 5: Solve for x
    x = 320,005.22/473.54
  6. Step 6: Final answer
    x = 675.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.