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Finding the Fourth Proportional to 215,309, 322,869.26 and 108,627.32

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Solution

The fourth proportional to 215,309, 322,869.26 and 108,627.32 is: 162,893.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,309 : 322,869.26 = 108,627.32 : x
  2. Step 2: Convert to fraction form
    215,309/322,869.26 = 108,627.32/x
  3. Step 3: Cross multiply
    215,309x = 322,869.26 × 108,627.32
  4. Step 4: Simplify right side
    215,309x = 35,072,422,424.18
  5. Step 5: Solve for x
    x = 35,072,422,424.18/215,309
  6. Step 6: Final answer
    x = 162,893.43

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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.