Home / 385,827.92-532,436.78-213,745.52

Finding the Fourth Proportional to 385,827.92, 532,436.78 and 213,745.52

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Solution

The fourth proportional to 385,827.92, 532,436.78 and 213,745.52 is: 294,965.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,827.92 : 532,436.78 = 213,745.52 : x
  2. Step 2: Convert to fraction form
    385,827.92/532,436.78 = 213,745.52/x
  3. Step 3: Cross multiply
    385,827.92x = 532,436.78 × 213,745.52
  4. Step 4: Simplify right side
    385,827.92x = 113,805,972,677.31
  5. Step 5: Solve for x
    x = 113,805,972,677.31/385,827.92
  6. Step 6: Final answer
    x = 294,965.63

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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.