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Finding the Fourth Proportional to 221,584.32, 305,808.48 and 132,160.32

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Solution

The fourth proportional to 221,584.32, 305,808.48 and 132,160.32 is: 182,394.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,584.32 : 305,808.48 = 132,160.32 : x
  2. Step 2: Convert to fraction form
    221,584.32/305,808.48 = 132,160.32/x
  3. Step 3: Cross multiply
    221,584.32x = 305,808.48 × 132,160.32
  4. Step 4: Simplify right side
    221,584.32x = 40,415,746,575.51
  5. Step 5: Solve for x
    x = 40,415,746,575.51/221,584.32
  6. Step 6: Final answer
    x = 182,394.43

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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.