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Finding the Fourth Proportional to 305.44, 456.40 and 250.63

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Solution

The fourth proportional to 305.44, 456.40 and 250.63 is: 374.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    305.44 : 456.40 = 250.63 : x
  2. Step 2: Convert to fraction form
    305.44/456.40 = 250.63/x
  3. Step 3: Cross multiply
    305.44x = 456.40 × 250.63
  4. Step 4: Simplify right side
    305.44x = 114,384.00
  5. Step 5: Solve for x
    x = 114,384.00/305.44
  6. Step 6: Final answer
    x = 374.50

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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.