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Finding the Fourth Proportional to 360,021.63, 496,820.22 and 198,873.21

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Solution

The fourth proportional to 360,021.63, 496,820.22 and 198,873.21 is: 274,439.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,021.63 : 496,820.22 = 198,873.21 : x
  2. Step 2: Convert to fraction form
    360,021.63/496,820.22 = 198,873.21/x
  3. Step 3: Cross multiply
    360,021.63x = 496,820.22 × 198,873.21
  4. Step 4: Simplify right side
    360,021.63x = 98,804,231,944.31
  5. Step 5: Solve for x
    x = 98,804,231,944.31/360,021.63
  6. Step 6: Final answer
    x = 274,439.71

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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.