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Finding the Fourth Proportional to 250.75, 376.14 and 210.46

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Solution

The fourth proportional to 250.75, 376.14 and 210.46 is: 315.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    250.75 : 376.14 = 210.46 : x
  2. Step 2: Convert to fraction form
    250.75/376.14 = 210.46/x
  3. Step 3: Cross multiply
    250.75x = 376.14 × 210.46
  4. Step 4: Simplify right side
    250.75x = 79,162.42
  5. Step 5: Solve for x
    x = 79,162.42/250.75
  6. Step 6: Final answer
    x = 315.70

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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.