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Finding the Fourth Proportional to 373,541.72, 515,486.48 and 203,774.63

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Solution

The fourth proportional to 373,541.72, 515,486.48 and 203,774.63 is: 281,208.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,541.72 : 515,486.48 = 203,774.63 : x
  2. Step 2: Convert to fraction form
    373,541.72/515,486.48 = 203,774.63/x
  3. Step 3: Cross multiply
    373,541.72x = 515,486.48 × 203,774.63
  4. Step 4: Simplify right side
    373,541.72x = 105,043,063,135.70
  5. Step 5: Solve for x
    x = 105,043,063,135.70/373,541.72
  6. Step 6: Final answer
    x = 281,208.39

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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.