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Finding the Fourth Proportional to 486,004.99, 670,687.31 and 271,145.10

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Solution

The fourth proportional to 486,004.99, 670,687.31 and 271,145.10 is: 374,180.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,004.99 : 670,687.31 = 271,145.10 : x
  2. Step 2: Convert to fraction form
    486,004.99/670,687.31 = 271,145.10/x
  3. Step 3: Cross multiply
    486,004.99x = 670,687.31 × 271,145.10
  4. Step 4: Simplify right side
    486,004.99x = 181,853,577,738.68
  5. Step 5: Solve for x
    x = 181,853,577,738.68/486,004.99
  6. Step 6: Final answer
    x = 374,180.47

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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.