Home / 380,871.20-571,344.69-141,049.28

Finding the Fourth Proportional to 380,871.20, 571,344.69 and 141,049.28

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Solution

The fourth proportional to 380,871.20, 571,344.69 and 141,049.28 is: 211,587.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,871.20 : 571,344.69 = 141,049.28 : x
  2. Step 2: Convert to fraction form
    380,871.20/571,344.69 = 141,049.28/x
  3. Step 3: Cross multiply
    380,871.20x = 571,344.69 × 141,049.28
  4. Step 4: Simplify right side
    380,871.20x = 80,587,757,156.32
  5. Step 5: Solve for x
    x = 80,587,757,156.32/380,871.20
  6. Step 6: Final answer
    x = 211,587.95

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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.