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Finding the Fourth Proportional to 373,521.09, 515,458.50 and 203,755.23

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Solution

The fourth proportional to 373,521.09, 515,458.50 and 203,755.23 is: 281,181.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,521.09 : 515,458.50 = 203,755.23 : x
  2. Step 2: Convert to fraction form
    373,521.09/515,458.50 = 203,755.23/x
  3. Step 3: Cross multiply
    373,521.09x = 515,458.50 × 203,755.23
  4. Step 4: Simplify right side
    373,521.09x = 105,027,365,222.96
  5. Step 5: Solve for x
    x = 105,027,365,222.96/373,521.09
  6. Step 6: Final answer
    x = 281,181.89

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1.5x scale

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.