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Finding the Fourth Proportional to 628.58, 943.07 and 303.97

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Solution

The fourth proportional to 628.58, 943.07 and 303.97 is: 456.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    628.58 : 943.07 = 303.97 : x
  2. Step 2: Convert to fraction form
    628.58/943.07 = 303.97/x
  3. Step 3: Cross multiply
    628.58x = 943.07 × 303.97
  4. Step 4: Simplify right side
    628.58x = 286,664.99
  5. Step 5: Solve for x
    x = 286,664.99/628.58
  6. Step 6: Final answer
    x = 456.05

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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.