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Finding the Fourth Proportional to 583.88, 805.56 and 331.77

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Solution

The fourth proportional to 583.88, 805.56 and 331.77 is: 457.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    583.88 : 805.56 = 331.77 : x
  2. Step 2: Convert to fraction form
    583.88/805.56 = 331.77/x
  3. Step 3: Cross multiply
    583.88x = 805.56 × 331.77
  4. Step 4: Simplify right side
    583.88x = 267,262.42
  5. Step 5: Solve for x
    x = 267,262.42/583.88
  6. Step 6: Final answer
    x = 457.74

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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.