Home / 385,473.57-531,945.09-211,043.41

Finding the Fourth Proportional to 385,473.57, 531,945.09 and 211,043.41

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Solution

The fourth proportional to 385,473.57, 531,945.09 and 211,043.41 is: 291,235.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,473.57 : 531,945.09 = 211,043.41 : x
  2. Step 2: Convert to fraction form
    385,473.57/531,945.09 = 211,043.41/x
  3. Step 3: Cross multiply
    385,473.57x = 531,945.09 × 211,043.41
  4. Step 4: Simplify right side
    385,473.57x = 112,263,504,396.49
  5. Step 5: Solve for x
    x = 112,263,504,396.49/385,473.57
  6. Step 6: Final answer
    x = 291,235.29

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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.