Home / 217,600.43-326,203.81-77,326.25

Finding the Fourth Proportional to 217,600.43, 326,203.81 and 77,326.25

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Solution

The fourth proportional to 217,600.43, 326,203.81 and 77,326.25 is: 115,919.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,600.43 : 326,203.81 = 77,326.25 : x
  2. Step 2: Convert to fraction form
    217,600.43/326,203.81 = 77,326.25/x
  3. Step 3: Cross multiply
    217,600.43x = 326,203.81 × 77,326.25
  4. Step 4: Simplify right side
    217,600.43x = 25,224,115,538.68
  5. Step 5: Solve for x
    x = 25,224,115,538.68/217,600.43
  6. Step 6: Final answer
    x = 115,919.42

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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.