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Finding the Fourth Proportional to 358.17, 493.88 and 233.67

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Solution

The fourth proportional to 358.17, 493.88 and 233.67 is: 322.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    358.17 : 493.88 = 233.67 : x
  2. Step 2: Convert to fraction form
    358.17/493.88 = 233.67/x
  3. Step 3: Cross multiply
    358.17x = 493.88 × 233.67
  4. Step 4: Simplify right side
    358.17x = 115,403.77
  5. Step 5: Solve for x
    x = 115,403.77/358.17
  6. Step 6: Final answer
    x = 322.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.