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Finding the Fourth Proportional to 215,555.33, 322,780.92 and 179,928.06

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Solution

The fourth proportional to 215,555.33, 322,780.92 and 179,928.06 is: 269,431.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,555.33 : 322,780.92 = 179,928.06 : x
  2. Step 2: Convert to fraction form
    215,555.33/322,780.92 = 179,928.06/x
  3. Step 3: Cross multiply
    215,555.33x = 322,780.92 × 179,928.06
  4. Step 4: Simplify right side
    215,555.33x = 58,077,344,740.62
  5. Step 5: Solve for x
    x = 58,077,344,740.62/215,555.33
  6. Step 6: Final answer
    x = 269,431.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.