Home / 268,922.10-403,383.15-71,930.10

Finding the Fourth Proportional to 268,922.10, 403,383.15 and 71,930.10

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Solution

The fourth proportional to 268,922.10, 403,383.15 and 71,930.10 is: 107,895.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,922.10 : 403,383.15 = 71,930.10 : x
  2. Step 2: Convert to fraction form
    268,922.10/403,383.15 = 71,930.10/x
  3. Step 3: Cross multiply
    268,922.10x = 403,383.15 × 71,930.10
  4. Step 4: Simplify right side
    268,922.10x = 29,015,390,317.82
  5. Step 5: Solve for x
    x = 29,015,390,317.82/268,922.10
  6. Step 6: Final answer
    x = 107,895.15

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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.