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Finding the Fourth Proportional to 473.10, 709.65 and 451.23

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Solution

The fourth proportional to 473.10, 709.65 and 451.23 is: 676.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    473.10 : 709.65 = 451.23 : x
  2. Step 2: Convert to fraction form
    473.10/709.65 = 451.23/x
  3. Step 3: Cross multiply
    473.10x = 709.65 × 451.23
  4. Step 4: Simplify right side
    473.10x = 320,215.37
  5. Step 5: Solve for x
    x = 320,215.37/473.10
  6. Step 6: Final answer
    x = 676.85

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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.