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Finding the Fourth Proportional to 293,679.81, 405,473.13 and 225,575.01

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Solution

The fourth proportional to 293,679.81, 405,473.13 and 225,575.01 is: 311,443.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,679.81 : 405,473.13 = 225,575.01 : x
  2. Step 2: Convert to fraction form
    293,679.81/405,473.13 = 225,575.01/x
  3. Step 3: Cross multiply
    293,679.81x = 405,473.13 × 225,575.01
  4. Step 4: Simplify right side
    293,679.81x = 91,464,605,354.48
  5. Step 5: Solve for x
    x = 91,464,605,354.48/293,679.81
  6. Step 6: Final answer
    x = 311,443.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.