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Finding the Fourth Proportional to 602.91, 832.23 and 381.87

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Solution

The fourth proportional to 602.91, 832.23 and 381.87 is: 527.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    602.91 : 832.23 = 381.87 : x
  2. Step 2: Convert to fraction form
    602.91/832.23 = 381.87/x
  3. Step 3: Cross multiply
    602.91x = 832.23 × 381.87
  4. Step 4: Simplify right side
    602.91x = 317,803.67
  5. Step 5: Solve for x
    x = 317,803.67/602.91
  6. Step 6: Final answer
    x = 527.12

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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.