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Finding the Fourth Proportional to 293,382.91, 440,143.01 and 90,968.36

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Solution

The fourth proportional to 293,382.91, 440,143.01 and 90,968.36 is: 136,473.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,382.91 : 440,143.01 = 90,968.36 : x
  2. Step 2: Convert to fraction form
    293,382.91/440,143.01 = 90,968.36/x
  3. Step 3: Cross multiply
    293,382.91x = 440,143.01 × 90,968.36
  4. Step 4: Simplify right side
    293,382.91x = 40,039,089,112.94
  5. Step 5: Solve for x
    x = 40,039,089,112.94/293,382.91
  6. Step 6: Final answer
    x = 136,473.83

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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.