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Finding the Fourth Proportional to 495,750.70, 743,493.20 and 215,201.26

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Solution

The fourth proportional to 495,750.70, 743,493.20 and 215,201.26 is: 322,744.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,750.70 : 743,493.20 = 215,201.26 : x
  2. Step 2: Convert to fraction form
    495,750.70/743,493.20 = 215,201.26/x
  3. Step 3: Cross multiply
    495,750.70x = 743,493.20 × 215,201.26
  4. Step 4: Simplify right side
    495,750.70x = 160,000,673,441.43
  5. Step 5: Solve for x
    x = 160,000,673,441.43/495,750.70
  6. Step 6: Final answer
    x = 322,744.22

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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.