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Finding the Fourth Proportional to 465.98, 642.93 and 372.92

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Solution

The fourth proportional to 465.98, 642.93 and 372.92 is: 514.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    465.98 : 642.93 = 372.92 : x
  2. Step 2: Convert to fraction form
    465.98/642.93 = 372.92/x
  3. Step 3: Cross multiply
    465.98x = 642.93 × 372.92
  4. Step 4: Simplify right side
    465.98x = 239,759.64
  5. Step 5: Solve for x
    x = 239,759.64/465.98
  6. Step 6: Final answer
    x = 514.53

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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.