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Finding the Fourth Proportional to 397,799.56, 548,963.46 and 218,951.56

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Solution

The fourth proportional to 397,799.56, 548,963.46 and 218,951.56 is: 302,153.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,799.56 : 548,963.46 = 218,951.56 : x
  2. Step 2: Convert to fraction form
    397,799.56/548,963.46 = 218,951.56/x
  3. Step 3: Cross multiply
    397,799.56x = 548,963.46 × 218,951.56
  4. Step 4: Simplify right side
    397,799.56x = 120,196,405,950.00
  5. Step 5: Solve for x
    x = 120,196,405,950.00/397,799.56
  6. Step 6: Final answer
    x = 302,153.19

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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.