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Finding the Fourth Proportional to 332.18, 458.29 and 228.50

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Solution

The fourth proportional to 332.18, 458.29 and 228.50 is: 315.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    332.18 : 458.29 = 228.50 : x
  2. Step 2: Convert to fraction form
    332.18/458.29 = 228.50/x
  3. Step 3: Cross multiply
    332.18x = 458.29 × 228.50
  4. Step 4: Simplify right side
    332.18x = 104,719.27
  5. Step 5: Solve for x
    x = 104,719.27/332.18
  6. Step 6: Final answer
    x = 315.25

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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.