Home / 385,476.15-531,963.39-211,043.46

Finding the Fourth Proportional to 385,476.15, 531,963.39 and 211,043.46

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Solution

The fourth proportional to 385,476.15, 531,963.39 and 211,043.46 is: 291,243.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,476.15 : 531,963.39 = 211,043.46 : x
  2. Step 2: Convert to fraction form
    385,476.15/531,963.39 = 211,043.46/x
  3. Step 3: Cross multiply
    385,476.15x = 531,963.39 × 211,043.46
  4. Step 4: Simplify right side
    385,476.15x = 112,267,394,418.93
  5. Step 5: Solve for x
    x = 112,267,394,418.93/385,476.15
  6. Step 6: Final answer
    x = 291,243.43

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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.