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Finding the Fourth Proportional to 373,193.80, 515,008.34 and 212,102.35

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Solution

The fourth proportional to 373,193.80, 515,008.34 and 212,102.35 is: 292,701.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,193.80 : 515,008.34 = 212,102.35 : x
  2. Step 2: Convert to fraction form
    373,193.80/515,008.34 = 212,102.35/x
  3. Step 3: Cross multiply
    373,193.80x = 515,008.34 × 212,102.35
  4. Step 4: Simplify right side
    373,193.80x = 109,234,479,183.60
  5. Step 5: Solve for x
    x = 109,234,479,183.60/373,193.80
  6. Step 6: Final answer
    x = 292,701.75

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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.