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Finding the Fourth Proportional to 322,150.16, 483,187.71 and 85,511.23

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Solution

The fourth proportional to 322,150.16, 483,187.71 and 85,511.23 is: 128,256.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,150.16 : 483,187.71 = 85,511.23 : x
  2. Step 2: Convert to fraction form
    322,150.16/483,187.71 = 85,511.23/x
  3. Step 3: Cross multiply
    322,150.16x = 483,187.71 × 85,511.23
  4. Step 4: Simplify right side
    322,150.16x = 41,317,975,402.98
  5. Step 5: Solve for x
    x = 41,317,975,402.98/322,150.16
  6. Step 6: Final answer
    x = 128,256.88

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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.