Home / 422,556.12-583,142.39-231,569.54

Finding the Fourth Proportional to 422,556.12, 583,142.39 and 231,569.54

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Solution

The fourth proportional to 422,556.12, 583,142.39 and 231,569.54 is: 319,574.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,556.12 : 583,142.39 = 231,569.54 : x
  2. Step 2: Convert to fraction form
    422,556.12/583,142.39 = 231,569.54/x
  3. Step 3: Cross multiply
    422,556.12x = 583,142.39 × 231,569.54
  4. Step 4: Simplify right side
    422,556.12x = 135,038,015,006.80
  5. Step 5: Solve for x
    x = 135,038,015,006.80/422,556.12
  6. Step 6: Final answer
    x = 319,574.16

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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.