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Finding the Fourth Proportional to 245.20, 370.36 and 245.20

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Solution

The fourth proportional to 245.20, 370.36 and 245.20 is: 370.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    245.20 : 370.36 = 245.20 : x
  2. Step 2: Convert to fraction form
    245.20/370.36 = 245.20/x
  3. Step 3: Cross multiply
    245.20x = 370.36 × 245.20
  4. Step 4: Simplify right side
    245.20x = 90,812.27
  5. Step 5: Solve for x
    x = 90,812.27/245.20
  6. Step 6: Final answer
    x = 370.36

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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.