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Finding the Fourth Proportional to 358.02, 536.76 and 141.57

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Solution

The fourth proportional to 358.02, 536.76 and 141.57 is: 212.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    358.02 : 536.76 = 141.57 : x
  2. Step 2: Convert to fraction form
    358.02/536.76 = 141.57/x
  3. Step 3: Cross multiply
    358.02x = 536.76 × 141.57
  4. Step 4: Simplify right side
    358.02x = 75,989.11
  5. Step 5: Solve for x
    x = 75,989.11/358.02
  6. Step 6: Final answer
    x = 212.25

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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.