Home / 215,523.64-321,386.81-200,564.56

Finding the Fourth Proportional to 215,523.64, 321,386.81 and 200,564.56

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Solution

The fourth proportional to 215,523.64, 321,386.81 and 200,564.56 is: 299,079.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,523.64 : 321,386.81 = 200,564.56 : x
  2. Step 2: Convert to fraction form
    215,523.64/321,386.81 = 200,564.56/x
  3. Step 3: Cross multiply
    215,523.64x = 321,386.81 × 200,564.56
  4. Step 4: Simplify right side
    215,523.64x = 64,458,804,137.45
  5. Step 5: Solve for x
    x = 64,458,804,137.45/215,523.64
  6. Step 6: Final answer
    x = 299,079.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.