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Finding the Fourth Proportional to 374.16, 560.34 and 343.38

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Solution

The fourth proportional to 374.16, 560.34 and 343.38 is: 514.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    374.16 : 560.34 = 343.38 : x
  2. Step 2: Convert to fraction form
    374.16/560.34 = 343.38/x
  3. Step 3: Cross multiply
    374.16x = 560.34 × 343.38
  4. Step 4: Simplify right side
    374.16x = 192,409.55
  5. Step 5: Solve for x
    x = 192,409.55/374.16
  6. Step 6: Final answer
    x = 514.24

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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.