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Finding the Fourth Proportional to 350.33, 482.96 and 291.40

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Solution

The fourth proportional to 350.33, 482.96 and 291.40 is: 401.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    350.33 : 482.96 = 291.40 : x
  2. Step 2: Convert to fraction form
    350.33/482.96 = 291.40/x
  3. Step 3: Cross multiply
    350.33x = 482.96 × 291.40
  4. Step 4: Simplify right side
    350.33x = 140,734.07
  5. Step 5: Solve for x
    x = 140,734.07/350.33
  6. Step 6: Final answer
    x = 401.72

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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.