Home / 385,107.34-531,407.24-212,997.97

Finding the Fourth Proportional to 385,107.34, 531,407.24 and 212,997.97

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Solution

The fourth proportional to 385,107.34, 531,407.24 and 212,997.97 is: 293,914.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,107.34 : 531,407.24 = 212,997.97 : x
  2. Step 2: Convert to fraction form
    385,107.34/531,407.24 = 212,997.97/x
  3. Step 3: Cross multiply
    385,107.34x = 531,407.24 × 212,997.97
  4. Step 4: Simplify right side
    385,107.34x = 113,188,660,706.27
  5. Step 5: Solve for x
    x = 113,188,660,706.27/385,107.34
  6. Step 6: Final answer
    x = 293,914.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.