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Finding the Fourth Proportional to 465.54, 701.06 and 405.39

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Solution

The fourth proportional to 465.54, 701.06 and 405.39 is: 610.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    465.54 : 701.06 = 405.39 : x
  2. Step 2: Convert to fraction form
    465.54/701.06 = 405.39/x
  3. Step 3: Cross multiply
    465.54x = 701.06 × 405.39
  4. Step 4: Simplify right side
    465.54x = 284,202.71
  5. Step 5: Solve for x
    x = 284,202.71/465.54
  6. Step 6: Final answer
    x = 610.48

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.