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Finding the Fourth Proportional to 274,530.30, 378,833.43 and 153,650.94

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Solution

The fourth proportional to 274,530.30, 378,833.43 and 153,650.94 is: 212,028.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,530.30 : 378,833.43 = 153,650.94 : x
  2. Step 2: Convert to fraction form
    274,530.30/378,833.43 = 153,650.94/x
  3. Step 3: Cross multiply
    274,530.30x = 378,833.43 × 153,650.94
  4. Step 4: Simplify right side
    274,530.30x = 58,208,112,622.92
  5. Step 5: Solve for x
    x = 58,208,112,622.92/274,530.30
  6. Step 6: Final answer
    x = 212,028.01

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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.