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Finding the Fourth Proportional to 540.60, 808.98 and 369.72

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Solution

The fourth proportional to 540.60, 808.98 and 369.72 is: 553.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    540.60 : 808.98 = 369.72 : x
  2. Step 2: Convert to fraction form
    540.60/808.98 = 369.72/x
  3. Step 3: Cross multiply
    540.60x = 808.98 × 369.72
  4. Step 4: Simplify right side
    540.60x = 299,096.09
  5. Step 5: Solve for x
    x = 299,096.09/540.60
  6. Step 6: Final answer
    x = 553.27

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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.