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Finding the Fourth Proportional to 291,202.38, 436,833.68 and 80,840.39

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Solution

The fourth proportional to 291,202.38, 436,833.68 and 80,840.39 is: 121,268.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,202.38 : 436,833.68 = 80,840.39 : x
  2. Step 2: Convert to fraction form
    291,202.38/436,833.68 = 80,840.39/x
  3. Step 3: Cross multiply
    291,202.38x = 436,833.68 × 80,840.39
  4. Step 4: Simplify right side
    291,202.38x = 35,313,802,467.96
  5. Step 5: Solve for x
    x = 35,313,802,467.96/291,202.38
  6. Step 6: Final answer
    x = 121,268.93

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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.