Home / 385,538.40-532,042.92-215,772.53

Finding the Fourth Proportional to 385,538.40, 532,042.92 and 215,772.53

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Solution

The fourth proportional to 385,538.40, 532,042.92 and 215,772.53 is: 297,766.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,538.40 : 532,042.92 = 215,772.53 : x
  2. Step 2: Convert to fraction form
    385,538.40/532,042.92 = 215,772.53/x
  3. Step 3: Cross multiply
    385,538.40x = 532,042.92 × 215,772.53
  4. Step 4: Simplify right side
    385,538.40x = 114,800,244,256.77
  5. Step 5: Solve for x
    x = 114,800,244,256.77/385,538.40
  6. Step 6: Final answer
    x = 297,766.04

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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.