Home / 268,928.07-403,141.52-91,313.60

Finding the Fourth Proportional to 268,928.07, 403,141.52 and 91,313.60

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Solution

The fourth proportional to 268,928.07, 403,141.52 and 91,313.60 is: 136,885.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,928.07 : 403,141.52 = 91,313.60 : x
  2. Step 2: Convert to fraction form
    268,928.07/403,141.52 = 91,313.60/x
  3. Step 3: Cross multiply
    268,928.07x = 403,141.52 × 91,313.60
  4. Step 4: Simplify right side
    268,928.07x = 36,812,301,028.40
  5. Step 5: Solve for x
    x = 36,812,301,028.40/268,928.07
  6. Step 6: Final answer
    x = 136,885.31

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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.