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Finding the Fourth Proportional to 561,254.42, 842,213.76 and 206,517.54

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Solution

The fourth proportional to 561,254.42, 842,213.76 and 206,517.54 is: 309,898.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,254.42 : 842,213.76 = 206,517.54 : x
  2. Step 2: Convert to fraction form
    561,254.42/842,213.76 = 206,517.54/x
  3. Step 3: Cross multiply
    561,254.42x = 842,213.76 × 206,517.54
  4. Step 4: Simplify right side
    561,254.42x = 173,931,913,869.35
  5. Step 5: Solve for x
    x = 173,931,913,869.35/561,254.42
  6. Step 6: Final answer
    x = 309,898.52

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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.