Home / 215,231.51-322,633.03-102,780.27

Finding the Fourth Proportional to 215,231.51, 322,633.03 and 102,780.27

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Solution

The fourth proportional to 215,231.51, 322,633.03 and 102,780.27 is: 154,068.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,231.51 : 322,633.03 = 102,780.27 : x
  2. Step 2: Convert to fraction form
    215,231.51/322,633.03 = 102,780.27/x
  3. Step 3: Cross multiply
    215,231.51x = 322,633.03 × 102,780.27
  4. Step 4: Simplify right side
    215,231.51x = 33,160,308,321.15
  5. Step 5: Solve for x
    x = 33,160,308,321.15/215,231.51
  6. Step 6: Final answer
    x = 154,068.10

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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.