Home / 380,581.44-570,952.32-143,918.88

Finding the Fourth Proportional to 380,581.44, 570,952.32 and 143,918.88

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Solution

The fourth proportional to 380,581.44, 570,952.32 and 143,918.88 is: 215,908.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,581.44 : 570,952.32 = 143,918.88 : x
  2. Step 2: Convert to fraction form
    380,581.44/570,952.32 = 143,918.88/x
  3. Step 3: Cross multiply
    380,581.44x = 570,952.32 × 143,918.88
  4. Step 4: Simplify right side
    380,581.44x = 82,170,818,427.80
  5. Step 5: Solve for x
    x = 82,170,818,427.80/380,581.44
  6. Step 6: Final answer
    x = 215,908.63

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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.