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Finding the Fourth Proportional to 493.32, 680.83 and 368.76

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Solution

The fourth proportional to 493.32, 680.83 and 368.76 is: 508.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    493.32 : 680.83 = 368.76 : x
  2. Step 2: Convert to fraction form
    493.32/680.83 = 368.76/x
  3. Step 3: Cross multiply
    493.32x = 680.83 × 368.76
  4. Step 4: Simplify right side
    493.32x = 251,062.34
  5. Step 5: Solve for x
    x = 251,062.34/493.32
  6. Step 6: Final answer
    x = 508.93

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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.