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Finding the Fourth Proportional to 418,361.67, 577,342.86 and 227,375.28

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Solution

The fourth proportional to 418,361.67, 577,342.86 and 227,375.28 is: 313,779.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,361.67 : 577,342.86 = 227,375.28 : x
  2. Step 2: Convert to fraction form
    418,361.67/577,342.86 = 227,375.28/x
  3. Step 3: Cross multiply
    418,361.67x = 577,342.86 × 227,375.28
  4. Step 4: Simplify right side
    418,361.67x = 131,273,494,448.50
  5. Step 5: Solve for x
    x = 131,273,494,448.50/418,361.67
  6. Step 6: Final answer
    x = 313,779.93

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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.