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Finding the Fourth Proportional to 291,338.97, 437,006.02 and 80,976.30

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Solution

The fourth proportional to 291,338.97, 437,006.02 and 80,976.30 is: 121,463.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,338.97 : 437,006.02 = 80,976.30 : x
  2. Step 2: Convert to fraction form
    291,338.97/437,006.02 = 80,976.30/x
  3. Step 3: Cross multiply
    291,338.97x = 437,006.02 × 80,976.30
  4. Step 4: Simplify right side
    291,338.97x = 35,387,130,577.33
  5. Step 5: Solve for x
    x = 35,387,130,577.33/291,338.97
  6. Step 6: Final answer
    x = 121,463.77

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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.