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Finding the Fourth Proportional to 235,087, 352,629.78 and 85,327.08

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Solution

The fourth proportional to 235,087, 352,629.78 and 85,327.08 is: 127,990.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,087 : 352,629.78 = 85,327.08 : x
  2. Step 2: Convert to fraction form
    235,087/352,629.78 = 85,327.08/x
  3. Step 3: Cross multiply
    235,087x = 352,629.78 × 85,327.08
  4. Step 4: Simplify right side
    235,087x = 30,088,869,448.44
  5. Step 5: Solve for x
    x = 30,088,869,448.44/235,087
  6. Step 6: Final answer
    x = 127,990.36

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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.