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Finding the Fourth Proportional to 253.65, 377.81 and 250.50

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Solution

The fourth proportional to 253.65, 377.81 and 250.50 is: 373.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    253.65 : 377.81 = 250.50 : x
  2. Step 2: Convert to fraction form
    253.65/377.81 = 250.50/x
  3. Step 3: Cross multiply
    253.65x = 377.81 × 250.50
  4. Step 4: Simplify right side
    253.65x = 94,641.41
  5. Step 5: Solve for x
    x = 94,641.41/253.65
  6. Step 6: Final answer
    x = 373.12

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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.