Home / 213,195.38-319,994.15-156,863.93

Finding the Fourth Proportional to 213,195.38, 319,994.15 and 156,863.93

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Solution

The fourth proportional to 213,195.38, 319,994.15 and 156,863.93 is: 235,443.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,195.38 : 319,994.15 = 156,863.93 : x
  2. Step 2: Convert to fraction form
    213,195.38/319,994.15 = 156,863.93/x
  3. Step 3: Cross multiply
    213,195.38x = 319,994.15 × 156,863.93
  4. Step 4: Simplify right side
    213,195.38x = 50,195,537,561.72
  5. Step 5: Solve for x
    x = 50,195,537,561.72/213,195.38
  6. Step 6: Final answer
    x = 235,443.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.