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Finding the Fourth Proportional to 291,359.03, 436,997.03 and 91,674.23

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Solution

The fourth proportional to 291,359.03, 436,997.03 and 91,674.23 is: 137,498.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,359.03 : 436,997.03 = 91,674.23 : x
  2. Step 2: Convert to fraction form
    291,359.03/436,997.03 = 91,674.23/x
  3. Step 3: Cross multiply
    291,359.03x = 436,997.03 × 91,674.23
  4. Step 4: Simplify right side
    291,359.03x = 40,061,367,100.84
  5. Step 5: Solve for x
    x = 40,061,367,100.84/291,359.03
  6. Step 6: Final answer
    x = 137,498.28

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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.