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Finding the Fourth Proportional to 350.46, 483.55 and 210.55

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Solution

The fourth proportional to 350.46, 483.55 and 210.55 is: 290.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    350.46 : 483.55 = 210.55 : x
  2. Step 2: Convert to fraction form
    350.46/483.55 = 210.55/x
  3. Step 3: Cross multiply
    350.46x = 483.55 × 210.55
  4. Step 4: Simplify right side
    350.46x = 101,812.13
  5. Step 5: Solve for x
    x = 101,812.13/350.46
  6. Step 6: Final answer
    x = 290.51

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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.