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Finding the Fourth Proportional to 572.49, 790.08 and 323.82

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Solution

The fourth proportional to 572.49, 790.08 and 323.82 is: 446.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    572.49 : 790.08 = 323.82 : x
  2. Step 2: Convert to fraction form
    572.49/790.08 = 323.82/x
  3. Step 3: Cross multiply
    572.49x = 790.08 × 323.82
  4. Step 4: Simplify right side
    572.49x = 255,843.71
  5. Step 5: Solve for x
    x = 255,843.71/572.49
  6. Step 6: Final answer
    x = 446.90

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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.