Home / 537,719.20-806,578.80-143,735.20

Finding the Fourth Proportional to 537,719.20, 806,578.80 and 143,735.20

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Solution

The fourth proportional to 537,719.20, 806,578.80 and 143,735.20 is: 215,602.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,719.20 : 806,578.80 = 143,735.20 : x
  2. Step 2: Convert to fraction form
    537,719.20/806,578.80 = 143,735.20/x
  3. Step 3: Cross multiply
    537,719.20x = 806,578.80 × 143,735.20
  4. Step 4: Simplify right side
    537,719.20x = 115,933,765,133.76
  5. Step 5: Solve for x
    x = 115,933,765,133.76/537,719.20
  6. Step 6: Final answer
    x = 215,602.80

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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.