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Finding the Fourth Proportional to 557,851.31, 836,444.35 and 220,940.31

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Solution

The fourth proportional to 557,851.31, 836,444.35 and 220,940.31 is: 331,278.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,851.31 : 836,444.35 = 220,940.31 : x
  2. Step 2: Convert to fraction form
    557,851.31/836,444.35 = 220,940.31/x
  3. Step 3: Cross multiply
    557,851.31x = 836,444.35 × 220,940.31
  4. Step 4: Simplify right side
    557,851.31x = 184,804,273,986.75
  5. Step 5: Solve for x
    x = 184,804,273,986.75/557,851.31
  6. Step 6: Final answer
    x = 331,278.73

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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.