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Finding the Fourth Proportional to 305.02, 454.79 and 299.55

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Solution

The fourth proportional to 305.02, 454.79 and 299.55 is: 446.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    305.02 : 454.79 = 299.55 : x
  2. Step 2: Convert to fraction form
    305.02/454.79 = 299.55/x
  3. Step 3: Cross multiply
    305.02x = 454.79 × 299.55
  4. Step 4: Simplify right side
    305.02x = 136,232.34
  5. Step 5: Solve for x
    x = 136,232.34/305.02
  6. Step 6: Final answer
    x = 446.63

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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.