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Finding the Fourth Proportional to 358.10, 536.62 and 248.30

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Solution

The fourth proportional to 358.10, 536.62 and 248.30 is: 372.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    358.10 : 536.62 = 248.30 : x
  2. Step 2: Convert to fraction form
    358.10/536.62 = 248.30/x
  3. Step 3: Cross multiply
    358.10x = 536.62 × 248.30
  4. Step 4: Simplify right side
    358.10x = 133,242.75
  5. Step 5: Solve for x
    x = 133,242.75/358.10
  6. Step 6: Final answer
    x = 372.08

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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.