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Finding the Fourth Proportional to 326,134.92, 449,980.65 and 188,280.12

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Solution

The fourth proportional to 326,134.92, 449,980.65 and 188,280.12 is: 259,777.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,134.92 : 449,980.65 = 188,280.12 : x
  2. Step 2: Convert to fraction form
    326,134.92/449,980.65 = 188,280.12/x
  3. Step 3: Cross multiply
    326,134.92x = 449,980.65 × 188,280.12
  4. Step 4: Simplify right side
    326,134.92x = 84,722,410,779.68
  5. Step 5: Solve for x
    x = 84,722,410,779.68/326,134.92
  6. Step 6: Final answer
    x = 259,777.18

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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.