Home / 268,954.03-403,430.64-81,965.53

Finding the Fourth Proportional to 268,954.03, 403,430.64 and 81,965.53

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Solution

The fourth proportional to 268,954.03, 403,430.64 and 81,965.53 is: 122,948.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,954.03 : 403,430.64 = 81,965.53 : x
  2. Step 2: Convert to fraction form
    268,954.03/403,430.64 = 81,965.53/x
  3. Step 3: Cross multiply
    268,954.03x = 403,430.64 × 81,965.53
  4. Step 4: Simplify right side
    268,954.03x = 33,067,406,225.84
  5. Step 5: Solve for x
    x = 33,067,406,225.84/268,954.03
  6. Step 6: Final answer
    x = 122,948.17

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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.