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Finding the Fourth Proportional to 274,300.66, 378,566.33 and 153,472.56

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Solution

The fourth proportional to 274,300.66, 378,566.33 and 153,472.56 is: 211,809.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,300.66 : 378,566.33 = 153,472.56 : x
  2. Step 2: Convert to fraction form
    274,300.66/378,566.33 = 153,472.56/x
  3. Step 3: Cross multiply
    274,300.66x = 378,566.33 × 153,472.56
  4. Step 4: Simplify right side
    274,300.66x = 58,099,541,607.92
  5. Step 5: Solve for x
    x = 58,099,541,607.92/274,300.66
  6. Step 6: Final answer
    x = 211,809.70

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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.