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Finding the Fourth Proportional to 320,546.49, 480,395.01 and 170,463.61

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Solution

The fourth proportional to 320,546.49, 480,395.01 and 170,463.61 is: 255,469.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,546.49 : 480,395.01 = 170,463.61 : x
  2. Step 2: Convert to fraction form
    320,546.49/480,395.01 = 170,463.61/x
  3. Step 3: Cross multiply
    320,546.49x = 480,395.01 × 170,463.61
  4. Step 4: Simplify right side
    320,546.49x = 81,889,867,630.59
  5. Step 5: Solve for x
    x = 81,889,867,630.59/320,546.49
  6. Step 6: Final answer
    x = 255,469.55

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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.