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Finding the Fourth Proportional to 253,650.54, 349,869.20 and 163,120.96

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Solution

The fourth proportional to 253,650.54, 349,869.20 and 163,120.96 is: 224,998.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,650.54 : 349,869.20 = 163,120.96 : x
  2. Step 2: Convert to fraction form
    253,650.54/349,869.20 = 163,120.96/x
  3. Step 3: Cross multiply
    253,650.54x = 349,869.20 × 163,120.96
  4. Step 4: Simplify right side
    253,650.54x = 57,070,999,778.43
  5. Step 5: Solve for x
    x = 57,070,999,778.43/253,650.54
  6. Step 6: Final answer
    x = 224,998.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.