Home / 268,947.96-403,171.32-91,333.50

Finding the Fourth Proportional to 268,947.96, 403,171.32 and 91,333.50

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Solution

The fourth proportional to 268,947.96, 403,171.32 and 91,333.50 is: 136,915.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,947.96 : 403,171.32 = 91,333.50 : x
  2. Step 2: Convert to fraction form
    268,947.96/403,171.32 = 91,333.50/x
  3. Step 3: Cross multiply
    268,947.96x = 403,171.32 × 91,333.50
  4. Step 4: Simplify right side
    268,947.96x = 36,823,047,755.22
  5. Step 5: Solve for x
    x = 36,823,047,755.22/268,947.96
  6. Step 6: Final answer
    x = 136,915.14

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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.