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Finding the Fourth Proportional to 527.98, 727.86 and 361.92

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Solution

The fourth proportional to 527.98, 727.86 and 361.92 is: 498.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    527.98 : 727.86 = 361.92 : x
  2. Step 2: Convert to fraction form
    527.98/727.86 = 361.92/x
  3. Step 3: Cross multiply
    527.98x = 727.86 × 361.92
  4. Step 4: Simplify right side
    527.98x = 263,427.09
  5. Step 5: Solve for x
    x = 263,427.09/527.98
  6. Step 6: Final answer
    x = 498.93

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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.