Home / 280,569.42-422,747.64-231,743.43

Finding the Fourth Proportional to 280,569.42, 422,747.64 and 231,743.43

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Solution

The fourth proportional to 280,569.42, 422,747.64 and 231,743.43 is: 349,179.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,569.42 : 422,747.64 = 231,743.43 : x
  2. Step 2: Convert to fraction form
    280,569.42/422,747.64 = 231,743.43/x
  3. Step 3: Cross multiply
    280,569.42x = 422,747.64 × 231,743.43
  4. Step 4: Simplify right side
    280,569.42x = 97,968,988,118.01
  5. Step 5: Solve for x
    x = 97,968,988,118.01/280,569.42
  6. Step 6: Final answer
    x = 349,179.14

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.