Home / 385,832.70-532,436.76-213,743.61

Finding the Fourth Proportional to 385,832.70, 532,436.76 and 213,743.61

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Solution

The fourth proportional to 385,832.70, 532,436.76 and 213,743.61 is: 294,959.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,832.70 : 532,436.76 = 213,743.61 : x
  2. Step 2: Convert to fraction form
    385,832.70/532,436.76 = 213,743.61/x
  3. Step 3: Cross multiply
    385,832.70x = 532,436.76 × 213,743.61
  4. Step 4: Simplify right side
    385,832.70x = 113,804,955,179.10
  5. Step 5: Solve for x
    x = 113,804,955,179.10/385,832.70
  6. Step 6: Final answer
    x = 294,959.33

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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.