Home / 215,128.27-322,691.96-102,466.79

Finding the Fourth Proportional to 215,128.27, 322,691.96 and 102,466.79

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Solution

The fourth proportional to 215,128.27, 322,691.96 and 102,466.79 is: 153,699.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,128.27 : 322,691.96 = 102,466.79 : x
  2. Step 2: Convert to fraction form
    215,128.27/322,691.96 = 102,466.79/x
  3. Step 3: Cross multiply
    215,128.27x = 322,691.96 × 102,466.79
  4. Step 4: Simplify right side
    215,128.27x = 33,065,209,300.01
  5. Step 5: Solve for x
    x = 33,065,209,300.01/215,128.27
  6. Step 6: Final answer
    x = 153,699.97

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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.