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Finding the Fourth Proportional to 274,504.88, 378,816.60 and 153,646.14

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Solution

The fourth proportional to 274,504.88, 378,816.60 and 153,646.14 is: 212,031.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,504.88 : 378,816.60 = 153,646.14 : x
  2. Step 2: Convert to fraction form
    274,504.88/378,816.60 = 153,646.14/x
  3. Step 3: Cross multiply
    274,504.88x = 378,816.60 × 153,646.14
  4. Step 4: Simplify right side
    274,504.88x = 58,203,708,357.92
  5. Step 5: Solve for x
    x = 58,203,708,357.92/274,504.88
  6. Step 6: Final answer
    x = 212,031.60

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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.