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Finding the Fourth Proportional to 500,067.81, 690,088.19 and 270,620.02

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Solution

The fourth proportional to 500,067.81, 690,088.19 and 270,620.02 is: 373,452.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,067.81 : 690,088.19 = 270,620.02 : x
  2. Step 2: Convert to fraction form
    500,067.81/690,088.19 = 270,620.02/x
  3. Step 3: Cross multiply
    500,067.81x = 690,088.19 × 270,620.02
  4. Step 4: Simplify right side
    500,067.81x = 186,751,679,779.56
  5. Step 5: Solve for x
    x = 186,751,679,779.56/500,067.81
  6. Step 6: Final answer
    x = 373,452.71

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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.