Home / 204,905.55-307,358.34-55,146.18

Finding the Fourth Proportional to 204,905.55, 307,358.34 and 55,146.18

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Solution

The fourth proportional to 204,905.55, 307,358.34 and 55,146.18 is: 82,719.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,905.55 : 307,358.34 = 55,146.18 : x
  2. Step 2: Convert to fraction form
    204,905.55/307,358.34 = 55,146.18/x
  3. Step 3: Cross multiply
    204,905.55x = 307,358.34 × 55,146.18
  4. Step 4: Simplify right side
    204,905.55x = 16,949,638,342.14
  5. Step 5: Solve for x
    x = 16,949,638,342.14/204,905.55
  6. Step 6: Final answer
    x = 82,719.27

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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.