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Finding the Fourth Proportional to 337,637.88, 505,742.22 and 218,956.68

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Solution

The fourth proportional to 337,637.88, 505,742.22 and 218,956.68 is: 327,971.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    337,637.88 : 505,742.22 = 218,956.68 : x
  2. Step 2: Convert to fraction form
    337,637.88/505,742.22 = 218,956.68/x
  3. Step 3: Cross multiply
    337,637.88x = 505,742.22 × 218,956.68
  4. Step 4: Simplify right side
    337,637.88x = 110,735,637,427.03
  5. Step 5: Solve for x
    x = 110,735,637,427.03/337,637.88
  6. Step 6: Final answer
    x = 327,971.61

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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.