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Finding the Fourth Proportional to 227,061, 313,353.90 and 126,459

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Solution

The fourth proportional to 227,061, 313,353.90 and 126,459 is: 174,518.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,061 : 313,353.90 = 126,459 : x
  2. Step 2: Convert to fraction form
    227,061/313,353.90 = 126,459/x
  3. Step 3: Cross multiply
    227,061x = 313,353.90 × 126,459
  4. Step 4: Simplify right side
    227,061x = 39,626,420,840.10
  5. Step 5: Solve for x
    x = 39,626,420,840.10/227,061
  6. Step 6: Final answer
    x = 174,518.83

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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.