Home / 209,966.30-314,833.80-143,481.50

Finding the Fourth Proportional to 209,966.30, 314,833.80 and 143,481.50

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Solution

The fourth proportional to 209,966.30, 314,833.80 and 143,481.50 is: 215,143.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,966.30 : 314,833.80 = 143,481.50 : x
  2. Step 2: Convert to fraction form
    209,966.30/314,833.80 = 143,481.50/x
  3. Step 3: Cross multiply
    209,966.30x = 314,833.80 × 143,481.50
  4. Step 4: Simplify right side
    209,966.30x = 45,172,825,874.70
  5. Step 5: Solve for x
    x = 45,172,825,874.70/209,966.30
  6. Step 6: Final answer
    x = 215,143.22

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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.