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Finding the Fourth Proportional to 673.28, 929.16 and 374.56

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Solution

The fourth proportional to 673.28, 929.16 and 374.56 is: 516.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    673.28 : 929.16 = 374.56 : x
  2. Step 2: Convert to fraction form
    673.28/929.16 = 374.56/x
  3. Step 3: Cross multiply
    673.28x = 929.16 × 374.56
  4. Step 4: Simplify right side
    673.28x = 348,026.17
  5. Step 5: Solve for x
    x = 348,026.17/673.28
  6. Step 6: Final answer
    x = 516.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.