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Finding the Fourth Proportional to 422,605.68, 583,169.40 and 231,605.52

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Solution

The fourth proportional to 422,605.68, 583,169.40 and 231,605.52 is: 319,601.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,605.68 : 583,169.40 = 231,605.52 : x
  2. Step 2: Convert to fraction form
    422,605.68/583,169.40 = 231,605.52/x
  3. Step 3: Cross multiply
    422,605.68x = 583,169.40 × 231,605.52
  4. Step 4: Simplify right side
    422,605.68x = 135,065,252,135.09
  5. Step 5: Solve for x
    x = 135,065,252,135.09/422,605.68
  6. Step 6: Final answer
    x = 319,601.13

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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.