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Finding the Fourth Proportional to 291,336.75, 437,005.26 and 80,976.51

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Solution

The fourth proportional to 291,336.75, 437,005.26 and 80,976.51 is: 121,464.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,336.75 : 437,005.26 = 80,976.51 : x
  2. Step 2: Convert to fraction form
    291,336.75/437,005.26 = 80,976.51/x
  3. Step 3: Cross multiply
    291,336.75x = 437,005.26 × 80,976.51
  4. Step 4: Simplify right side
    291,336.75x = 35,387,160,806.44
  5. Step 5: Solve for x
    x = 35,387,160,806.44/291,336.75
  6. Step 6: Final answer
    x = 121,464.80

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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.