Home / 272,837.20-409,255.80-188,856.40

Finding the Fourth Proportional to 272,837.20, 409,255.80 and 188,856.40

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Solution

The fourth proportional to 272,837.20, 409,255.80 and 188,856.40 is: 283,284.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,837.20 : 409,255.80 = 188,856.40 : x
  2. Step 2: Convert to fraction form
    272,837.20/409,255.80 = 188,856.40/x
  3. Step 3: Cross multiply
    272,837.20x = 409,255.80 × 188,856.40
  4. Step 4: Simplify right side
    272,837.20x = 77,290,577,067.12
  5. Step 5: Solve for x
    x = 77,290,577,067.12/272,837.20
  6. Step 6: Final answer
    x = 283,284.60

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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.