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Finding the Fourth Proportional to 324,223.56, 447,426.80 and 188,290.92

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Solution

The fourth proportional to 324,223.56, 447,426.80 and 188,290.92 is: 259,840.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,223.56 : 447,426.80 = 188,290.92 : x
  2. Step 2: Convert to fraction form
    324,223.56/447,426.80 = 188,290.92/x
  3. Step 3: Cross multiply
    324,223.56x = 447,426.80 × 188,290.92
  4. Step 4: Simplify right side
    324,223.56x = 84,246,402,863.20
  5. Step 5: Solve for x
    x = 84,246,402,863.20/324,223.56
  6. Step 6: Final answer
    x = 259,840.47

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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.