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Finding the Fourth Proportional to 251.04, 374.31 and 250.70

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Solution

The fourth proportional to 251.04, 374.31 and 250.70 is: 373.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    251.04 : 374.31 = 250.70 : x
  2. Step 2: Convert to fraction form
    251.04/374.31 = 250.70/x
  3. Step 3: Cross multiply
    251.04x = 374.31 × 250.70
  4. Step 4: Simplify right side
    251.04x = 93,839.52
  5. Step 5: Solve for x
    x = 93,839.52/251.04
  6. Step 6: Final answer
    x = 373.80

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.