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Finding the Fourth Proportional to 422,939.93, 583,657.79 and 231,954.48

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Solution

The fourth proportional to 422,939.93, 583,657.79 and 231,954.48 is: 320,097.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,939.93 : 583,657.79 = 231,954.48 : x
  2. Step 2: Convert to fraction form
    422,939.93/583,657.79 = 231,954.48/x
  3. Step 3: Cross multiply
    422,939.93x = 583,657.79 × 231,954.48
  4. Step 4: Simplify right side
    422,939.93x = 135,382,038,017.63
  5. Step 5: Solve for x
    x = 135,382,038,017.63/422,939.93
  6. Step 6: Final answer
    x = 320,097.56

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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.