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Finding the Fourth Proportional to 217,284.80, 325,538.40 and 134,081.60

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Solution

The fourth proportional to 217,284.80, 325,538.40 and 134,081.60 is: 200,882.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,284.80 : 325,538.40 = 134,081.60 : x
  2. Step 2: Convert to fraction form
    217,284.80/325,538.40 = 134,081.60/x
  3. Step 3: Cross multiply
    217,284.80x = 325,538.40 × 134,081.60
  4. Step 4: Simplify right side
    217,284.80x = 43,648,709,533.44
  5. Step 5: Solve for x
    x = 43,648,709,533.44/217,284.80
  6. Step 6: Final answer
    x = 200,882.48

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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.