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Finding the Fourth Proportional to 145,843.36, 218,777.40 and 40,662.44

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Solution

The fourth proportional to 145,843.36, 218,777.40 and 40,662.44 is: 60,997.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,843.36 : 218,777.40 = 40,662.44 : x
  2. Step 2: Convert to fraction form
    145,843.36/218,777.40 = 40,662.44/x
  3. Step 3: Cross multiply
    145,843.36x = 218,777.40 × 40,662.44
  4. Step 4: Simplify right side
    145,843.36x = 8,896,022,900.86
  5. Step 5: Solve for x
    x = 8,896,022,900.86/145,843.36
  6. Step 6: Final answer
    x = 60,997.11

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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.