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Finding the Fourth Proportional to 353,097.46, 486,817.13 and 228,697.11

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Solution

The fourth proportional to 353,097.46, 486,817.13 and 228,697.11 is: 315,305.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,097.46 : 486,817.13 = 228,697.11 : x
  2. Step 2: Convert to fraction form
    353,097.46/486,817.13 = 228,697.11/x
  3. Step 3: Cross multiply
    353,097.46x = 486,817.13 × 228,697.11
  4. Step 4: Simplify right side
    353,097.46x = 111,333,668,295.41
  5. Step 5: Solve for x
    x = 111,333,668,295.41/353,097.46
  6. Step 6: Final answer
    x = 315,305.78

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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.