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Finding the Fourth Proportional to 576.20, 795.14 and 355.08

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Solution

The fourth proportional to 576.20, 795.14 and 355.08 is: 490.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    576.20 : 795.14 = 355.08 : x
  2. Step 2: Convert to fraction form
    576.20/795.14 = 355.08/x
  3. Step 3: Cross multiply
    576.20x = 795.14 × 355.08
  4. Step 4: Simplify right side
    576.20x = 282,338.31
  5. Step 5: Solve for x
    x = 282,338.31/576.20
  6. Step 6: Final answer
    x = 490.00

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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.