Home / 215,324.48-322,199.40-126,619.76

Finding the Fourth Proportional to 215,324.48, 322,199.40 and 126,619.76

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Solution

The fourth proportional to 215,324.48, 322,199.40 and 126,619.76 is: 189,466.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,324.48 : 322,199.40 = 126,619.76 : x
  2. Step 2: Convert to fraction form
    215,324.48/322,199.40 = 126,619.76/x
  3. Step 3: Cross multiply
    215,324.48x = 322,199.40 × 126,619.76
  4. Step 4: Simplify right side
    215,324.48x = 40,796,810,700.14
  5. Step 5: Solve for x
    x = 40,796,810,700.14/215,324.48
  6. Step 6: Final answer
    x = 189,466.66

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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.