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Finding the Fourth Proportional to 734.99, 1,102.04 and 345.08

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Solution

The fourth proportional to 734.99, 1,102.04 and 345.08 is: 517.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    734.99 : 1,102.04 = 345.08 : x
  2. Step 2: Convert to fraction form
    734.99/1,102.04 = 345.08/x
  3. Step 3: Cross multiply
    734.99x = 1,102.04 × 345.08
  4. Step 4: Simplify right side
    734.99x = 380,289.38
  5. Step 5: Solve for x
    x = 380,289.38/734.99
  6. Step 6: Final answer
    x = 517.41

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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.