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Finding the Fourth Proportional to 502,503.80, 753,755.70 and 221,876.60

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Solution

The fourth proportional to 502,503.80, 753,755.70 and 221,876.60 is: 332,814.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,503.80 : 753,755.70 = 221,876.60 : x
  2. Step 2: Convert to fraction form
    502,503.80/753,755.70 = 221,876.60/x
  3. Step 3: Cross multiply
    502,503.80x = 753,755.70 × 221,876.60
  4. Step 4: Simplify right side
    502,503.80x = 167,240,751,946.62
  5. Step 5: Solve for x
    x = 167,240,751,946.62/502,503.80
  6. Step 6: Final answer
    x = 332,814.90

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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.