Home / 268,949.43-403,307.51-91,408.77

Finding the Fourth Proportional to 268,949.43, 403,307.51 and 91,408.77

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Solution

The fourth proportional to 268,949.43, 403,307.51 and 91,408.77 is: 137,073.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,949.43 : 403,307.51 = 91,408.77 : x
  2. Step 2: Convert to fraction form
    268,949.43/403,307.51 = 91,408.77/x
  3. Step 3: Cross multiply
    268,949.43x = 403,307.51 × 91,408.77
  4. Step 4: Simplify right side
    268,949.43x = 36,865,842,963.82
  5. Step 5: Solve for x
    x = 36,865,842,963.82/268,949.43
  6. Step 6: Final answer
    x = 137,073.51

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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.