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Finding the Fourth Proportional to 358.41, 538.17 and 313.05

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Solution

The fourth proportional to 358.41, 538.17 and 313.05 is: 470.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    358.41 : 538.17 = 313.05 : x
  2. Step 2: Convert to fraction form
    358.41/538.17 = 313.05/x
  3. Step 3: Cross multiply
    358.41x = 538.17 × 313.05
  4. Step 4: Simplify right side
    358.41x = 168,474.12
  5. Step 5: Solve for x
    x = 168,474.12/358.41
  6. Step 6: Final answer
    x = 470.06

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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.