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Finding the Fourth Proportional to 307.41, 457.74 and 303.04

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Solution

The fourth proportional to 307.41, 457.74 and 303.04 is: 451.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    307.41 : 457.74 = 303.04 : x
  2. Step 2: Convert to fraction form
    307.41/457.74 = 303.04/x
  3. Step 3: Cross multiply
    307.41x = 457.74 × 303.04
  4. Step 4: Simplify right side
    307.41x = 138,713.53
  5. Step 5: Solve for x
    x = 138,713.53/307.41
  6. Step 6: Final answer
    x = 451.23

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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.