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Finding the Fourth Proportional to 583.94, 805.82 and 321.95

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Solution

The fourth proportional to 583.94, 805.82 and 321.95 is: 444.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    583.94 : 805.82 = 321.95 : x
  2. Step 2: Convert to fraction form
    583.94/805.82 = 321.95/x
  3. Step 3: Cross multiply
    583.94x = 805.82 × 321.95
  4. Step 4: Simplify right side
    583.94x = 259,428.11
  5. Step 5: Solve for x
    x = 259,428.11/583.94
  6. Step 6: Final answer
    x = 444.28

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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.