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Finding the Fourth Proportional to 253.36, 377.30 and 237.78

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Solution

The fourth proportional to 253.36, 377.30 and 237.78 is: 354.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    253.36 : 377.30 = 237.78 : x
  2. Step 2: Convert to fraction form
    253.36/377.30 = 237.78/x
  3. Step 3: Cross multiply
    253.36x = 377.30 × 237.78
  4. Step 4: Simplify right side
    253.36x = 89,714.39
  5. Step 5: Solve for x
    x = 89,714.39/253.36
  6. Step 6: Final answer
    x = 354.10

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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.