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Finding the Fourth Proportional to 354,449.44, 489,113.04 and 203,595.04

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Solution

The fourth proportional to 354,449.44, 489,113.04 and 203,595.04 is: 280,945.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,449.44 : 489,113.04 = 203,595.04 : x
  2. Step 2: Convert to fraction form
    354,449.44/489,113.04 = 203,595.04/x
  3. Step 3: Cross multiply
    354,449.44x = 489,113.04 × 203,595.04
  4. Step 4: Simplify right side
    354,449.44x = 99,580,988,943.32
  5. Step 5: Solve for x
    x = 99,580,988,943.32/354,449.44
  6. Step 6: Final answer
    x = 280,945.54

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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.