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Finding the Fourth Proportional to 255,645.45, 352,816.97 and 153,704.12

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Solution

The fourth proportional to 255,645.45, 352,816.97 and 153,704.12 is: 212,127.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,645.45 : 352,816.97 = 153,704.12 : x
  2. Step 2: Convert to fraction form
    255,645.45/352,816.97 = 153,704.12/x
  3. Step 3: Cross multiply
    255,645.45x = 352,816.97 × 153,704.12
  4. Step 4: Simplify right side
    255,645.45x = 54,229,419,362.31
  5. Step 5: Solve for x
    x = 54,229,419,362.31/255,645.45
  6. Step 6: Final answer
    x = 212,127.46

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