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Finding the Fourth Proportional to 520.94, 783.16 and 367.96

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Solution

The fourth proportional to 520.94, 783.16 and 367.96 is: 553.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    520.94 : 783.16 = 367.96 : x
  2. Step 2: Convert to fraction form
    520.94/783.16 = 367.96/x
  3. Step 3: Cross multiply
    520.94x = 783.16 × 367.96
  4. Step 4: Simplify right side
    520.94x = 288,171.55
  5. Step 5: Solve for x
    x = 288,171.55/520.94
  6. Step 6: Final answer
    x = 553.18

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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.