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Finding the Fourth Proportional to 357.70, 493.64 and 233.46

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Solution

The fourth proportional to 357.70, 493.64 and 233.46 is: 322.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    357.70 : 493.64 = 233.46 : x
  2. Step 2: Convert to fraction form
    357.70/493.64 = 233.46/x
  3. Step 3: Cross multiply
    357.70x = 493.64 × 233.46
  4. Step 4: Simplify right side
    357.70x = 115,245.19
  5. Step 5: Solve for x
    x = 115,245.19/357.70
  6. Step 6: Final answer
    x = 322.18

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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.