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Finding the Fourth Proportional to 493,015.22, 680,359.64 and 266,660.18

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Solution

The fourth proportional to 493,015.22, 680,359.64 and 266,660.18 is: 367,990.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,015.22 : 680,359.64 = 266,660.18 : x
  2. Step 2: Convert to fraction form
    493,015.22/680,359.64 = 266,660.18/x
  3. Step 3: Cross multiply
    493,015.22x = 680,359.64 × 266,660.18
  4. Step 4: Simplify right side
    493,015.22x = 181,424,824,067.14
  5. Step 5: Solve for x
    x = 181,424,824,067.14/493,015.22
  6. Step 6: Final answer
    x = 367,990.31

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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.