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Finding the Fourth Proportional to 502,218.96, 753,328.43 and 221,680.32

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Solution

The fourth proportional to 502,218.96, 753,328.43 and 221,680.32 is: 332,520.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,218.96 : 753,328.43 = 221,680.32 : x
  2. Step 2: Convert to fraction form
    502,218.96/753,328.43 = 221,680.32/x
  3. Step 3: Cross multiply
    502,218.96x = 753,328.43 × 221,680.32
  4. Step 4: Simplify right side
    502,218.96x = 166,998,087,427.50
  5. Step 5: Solve for x
    x = 166,998,087,427.50/502,218.96
  6. Step 6: Final answer
    x = 332,520.48

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Similar ratio
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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.