Home / 380,895.76-571,164.56-140,843.80

Finding the Fourth Proportional to 380,895.76, 571,164.56 and 140,843.80

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Solution

The fourth proportional to 380,895.76, 571,164.56 and 140,843.80 is: 211,199.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,895.76 : 571,164.56 = 140,843.80 : x
  2. Step 2: Convert to fraction form
    380,895.76/571,164.56 = 140,843.80/x
  3. Step 3: Cross multiply
    380,895.76x = 571,164.56 × 140,843.80
  4. Step 4: Simplify right side
    380,895.76x = 80,444,987,055.73
  5. Step 5: Solve for x
    x = 80,444,987,055.73/380,895.76
  6. Step 6: Final answer
    x = 211,199.48

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1.5x scale

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.