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Finding the Fourth Proportional to 559.00, 771.32 and 322.95

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Solution

The fourth proportional to 559.00, 771.32 and 322.95 is: 445.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    559.00 : 771.32 = 322.95 : x
  2. Step 2: Convert to fraction form
    559.00/771.32 = 322.95/x
  3. Step 3: Cross multiply
    559.00x = 771.32 × 322.95
  4. Step 4: Simplify right side
    559.00x = 249,101.49
  5. Step 5: Solve for x
    x = 249,101.49/559.00
  6. Step 6: Final answer
    x = 445.62

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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.