Home / 268,629.72-403,781.28-169,427.40

Finding the Fourth Proportional to 268,629.72, 403,781.28 and 169,427.40

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Solution

The fourth proportional to 268,629.72, 403,781.28 and 169,427.40 is: 254,668.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,629.72 : 403,781.28 = 169,427.40 : x
  2. Step 2: Convert to fraction form
    268,629.72/403,781.28 = 169,427.40/x
  3. Step 3: Cross multiply
    268,629.72x = 403,781.28 × 169,427.40
  4. Step 4: Simplify right side
    268,629.72x = 68,411,612,439.07
  5. Step 5: Solve for x
    x = 68,411,612,439.07/268,629.72
  6. Step 6: Final answer
    x = 254,668.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.