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Finding the Fourth Proportional to 358.86, 538.70 and 176.34

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Solution

The fourth proportional to 358.86, 538.70 and 176.34 is: 264.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    358.86 : 538.70 = 176.34 : x
  2. Step 2: Convert to fraction form
    358.86/538.70 = 176.34/x
  3. Step 3: Cross multiply
    358.86x = 538.70 × 176.34
  4. Step 4: Simplify right side
    358.86x = 94,993.48
  5. Step 5: Solve for x
    x = 94,993.48/358.86
  6. Step 6: Final answer
    x = 264.71

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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.