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Finding the Fourth Proportional to 651.09, 976.61 and 322.27

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Solution

The fourth proportional to 651.09, 976.61 and 322.27 is: 483.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    651.09 : 976.61 = 322.27 : x
  2. Step 2: Convert to fraction form
    651.09/976.61 = 322.27/x
  3. Step 3: Cross multiply
    651.09x = 976.61 × 322.27
  4. Step 4: Simplify right side
    651.09x = 314,730.49
  5. Step 5: Solve for x
    x = 314,730.49/651.09
  6. Step 6: Final answer
    x = 483.39

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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.