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Finding the Fourth Proportional to 576.76, 795.90 and 355.84

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Solution

The fourth proportional to 576.76, 795.90 and 355.84 is: 491.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    576.76 : 795.90 = 355.84 : x
  2. Step 2: Convert to fraction form
    576.76/795.90 = 355.84/x
  3. Step 3: Cross multiply
    576.76x = 795.90 × 355.84
  4. Step 4: Simplify right side
    576.76x = 283,213.06
  5. Step 5: Solve for x
    x = 283,213.06/576.76
  6. Step 6: Final answer
    x = 491.04

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Find fourth proportional to 288.38, 397.95 and 177.92
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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.