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Finding the Fourth Proportional to 493,015.86, 680,361.39 and 266,660.82

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Solution

The fourth proportional to 493,015.86, 680,361.39 and 266,660.82 is: 367,991.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,015.86 : 680,361.39 = 266,660.82 : x
  2. Step 2: Convert to fraction form
    493,015.86/680,361.39 = 266,660.82/x
  3. Step 3: Cross multiply
    493,015.86x = 680,361.39 × 266,660.82
  4. Step 4: Simplify right side
    493,015.86x = 181,425,726,153.74
  5. Step 5: Solve for x
    x = 181,425,726,153.74/493,015.86
  6. Step 6: Final answer
    x = 367,991.66

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1.5x scale

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.