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Finding the Fourth Proportional to 370.08, 509.52 and 345.24

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Solution

The fourth proportional to 370.08, 509.52 and 345.24 is: 475.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    370.08 : 509.52 = 345.24 : x
  2. Step 2: Convert to fraction form
    370.08/509.52 = 345.24/x
  3. Step 3: Cross multiply
    370.08x = 509.52 × 345.24
  4. Step 4: Simplify right side
    370.08x = 175,906.68
  5. Step 5: Solve for x
    x = 175,906.68/370.08
  6. Step 6: Final answer
    x = 475.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.