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Finding the Fourth Proportional to 389,701.50, 582,863.58 and 229,395.39

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Solution

The fourth proportional to 389,701.50, 582,863.58 and 229,395.39 is: 343,099.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,701.50 : 582,863.58 = 229,395.39 : x
  2. Step 2: Convert to fraction form
    389,701.50/582,863.58 = 229,395.39/x
  3. Step 3: Cross multiply
    389,701.50x = 582,863.58 × 229,395.39
  4. Step 4: Simplify right side
    389,701.50x = 133,706,218,250.90
  5. Step 5: Solve for x
    x = 133,706,218,250.90/389,701.50
  6. Step 6: Final answer
    x = 343,099.06

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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.