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Finding the Fourth Proportional to 526.91, 727.96 and 361.60

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Solution

The fourth proportional to 526.91, 727.96 and 361.60 is: 499.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    526.91 : 727.96 = 361.60 : x
  2. Step 2: Convert to fraction form
    526.91/727.96 = 361.60/x
  3. Step 3: Cross multiply
    526.91x = 727.96 × 361.60
  4. Step 4: Simplify right side
    526.91x = 263,230.34
  5. Step 5: Solve for x
    x = 263,230.34/526.91
  6. Step 6: Final answer
    x = 499.57

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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.