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Finding the Fourth Proportional to 357.35, 490.59 and 341.55

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Solution

The fourth proportional to 357.35, 490.59 and 341.55 is: 468.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    357.35 : 490.59 = 341.55 : x
  2. Step 2: Convert to fraction form
    357.35/490.59 = 341.55/x
  3. Step 3: Cross multiply
    357.35x = 490.59 × 341.55
  4. Step 4: Simplify right side
    357.35x = 167,561.01
  5. Step 5: Solve for x
    x = 167,561.01/357.35
  6. Step 6: Final answer
    x = 468.91

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.