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Finding the Fourth Proportional to 322,087.37, 483,156.41 and 85,430.07

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Solution

The fourth proportional to 322,087.37, 483,156.41 and 85,430.07 is: 128,151.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,087.37 : 483,156.41 = 85,430.07 : x
  2. Step 2: Convert to fraction form
    322,087.37/483,156.41 = 85,430.07/x
  3. Step 3: Cross multiply
    322,087.37x = 483,156.41 × 85,430.07
  4. Step 4: Simplify right side
    322,087.37x = 41,276,085,500.10
  5. Step 5: Solve for x
    x = 41,276,085,500.10/322,087.37
  6. Step 6: Final answer
    x = 128,151.83

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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.