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Finding the Fourth Proportional to 321.75, 482.62 and 296.37

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Solution

The fourth proportional to 321.75, 482.62 and 296.37 is: 444.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    321.75 : 482.62 = 296.37 : x
  2. Step 2: Convert to fraction form
    321.75/482.62 = 296.37/x
  3. Step 3: Cross multiply
    321.75x = 482.62 × 296.37
  4. Step 4: Simplify right side
    321.75x = 143,030.19
  5. Step 5: Solve for x
    x = 143,030.19/321.75
  6. Step 6: Final answer
    x = 444.55

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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.