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Finding the Fourth Proportional to 557.58, 836.28 and 351.84

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Solution

The fourth proportional to 557.58, 836.28 and 351.84 is: 527.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    557.58 : 836.28 = 351.84 : x
  2. Step 2: Convert to fraction form
    557.58/836.28 = 351.84/x
  3. Step 3: Cross multiply
    557.58x = 836.28 × 351.84
  4. Step 4: Simplify right side
    557.58x = 294,236.76
  5. Step 5: Solve for x
    x = 294,236.76/557.58
  6. Step 6: Final answer
    x = 527.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.