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Finding the Fourth Proportional to 329,640.76, 493,949.62 and 228,636.06

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Solution

The fourth proportional to 329,640.76, 493,949.62 and 228,636.06 is: 342,599.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,640.76 : 493,949.62 = 228,636.06 : x
  2. Step 2: Convert to fraction form
    329,640.76/493,949.62 = 228,636.06/x
  3. Step 3: Cross multiply
    329,640.76x = 493,949.62 × 228,636.06
  4. Step 4: Simplify right side
    329,640.76x = 112,934,694,955.30
  5. Step 5: Solve for x
    x = 112,934,694,955.30/329,640.76
  6. Step 6: Final answer
    x = 342,599.30

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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.