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Finding the Fourth Proportional to 272,164.70, 408,052.65 and 122,282.30

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Solution

The fourth proportional to 272,164.70, 408,052.65 and 122,282.30 is: 183,336.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,164.70 : 408,052.65 = 122,282.30 : x
  2. Step 2: Convert to fraction form
    272,164.70/408,052.65 = 122,282.30/x
  3. Step 3: Cross multiply
    272,164.70x = 408,052.65 × 122,282.30
  4. Step 4: Simplify right side
    272,164.70x = 49,897,616,563.10
  5. Step 5: Solve for x
    x = 49,897,616,563.10/272,164.70
  6. Step 6: Final answer
    x = 183,336.11

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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.