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Finding the Fourth Proportional to 305.66, 458.28 and 244.78

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Solution

The fourth proportional to 305.66, 458.28 and 244.78 is: 367.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    305.66 : 458.28 = 244.78 : x
  2. Step 2: Convert to fraction form
    305.66/458.28 = 244.78/x
  3. Step 3: Cross multiply
    305.66x = 458.28 × 244.78
  4. Step 4: Simplify right side
    305.66x = 112,176.63
  5. Step 5: Solve for x
    x = 112,176.63/305.66
  6. Step 6: Final answer
    x = 367.00

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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.