Home / 209,322.30-288,872.38-119,915.58

Finding the Fourth Proportional to 209,322.30, 288,872.38 and 119,915.58

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Solution

The fourth proportional to 209,322.30, 288,872.38 and 119,915.58 is: 165,487.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,322.30 : 288,872.38 = 119,915.58 : x
  2. Step 2: Convert to fraction form
    209,322.30/288,872.38 = 119,915.58/x
  3. Step 3: Cross multiply
    209,322.30x = 288,872.38 × 119,915.58
  4. Step 4: Simplify right side
    209,322.30x = 34,640,298,993.68
  5. Step 5: Solve for x
    x = 34,640,298,993.68/209,322.30
  6. Step 6: Final answer
    x = 165,487.86

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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.