Home / 325,400.40-449,039.43-189,438.26

Finding the Fourth Proportional to 325,400.40, 449,039.43 and 189,438.26

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Solution

The fourth proportional to 325,400.40, 449,039.43 and 189,438.26 is: 261,417.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,400.40 : 449,039.43 = 189,438.26 : x
  2. Step 2: Convert to fraction form
    325,400.40/449,039.43 = 189,438.26/x
  3. Step 3: Cross multiply
    325,400.40x = 449,039.43 × 189,438.26
  4. Step 4: Simplify right side
    325,400.40x = 85,065,246,045.39
  5. Step 5: Solve for x
    x = 85,065,246,045.39/325,400.40
  6. Step 6: Final answer
    x = 261,417.15

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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.