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Finding the Fourth Proportional to 272,163.70, 408,051.15 and 122,281.30

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Solution

The fourth proportional to 272,163.70, 408,051.15 and 122,281.30 is: 183,334.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,163.70 : 408,051.15 = 122,281.30 : x
  2. Step 2: Convert to fraction form
    272,163.70/408,051.15 = 122,281.30/x
  3. Step 3: Cross multiply
    272,163.70x = 408,051.15 × 122,281.30
  4. Step 4: Simplify right side
    272,163.70x = 49,897,025,088.50
  5. Step 5: Solve for x
    x = 49,897,025,088.50/272,163.70
  6. Step 6: Final answer
    x = 183,334.61

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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.