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Finding the Fourth Proportional to 375.08, 565.12 and 345.56

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Solution

The fourth proportional to 375.08, 565.12 and 345.56 is: 520.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    375.08 : 565.12 = 345.56 : x
  2. Step 2: Convert to fraction form
    375.08/565.12 = 345.56/x
  3. Step 3: Cross multiply
    375.08x = 565.12 × 345.56
  4. Step 4: Simplify right side
    375.08x = 195,279.18
  5. Step 5: Solve for x
    x = 195,279.18/375.08
  6. Step 6: Final answer
    x = 520.64

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.