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Finding the Fourth Proportional to 268,908.95, 403,381.91 and 88,994.05

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Solution

The fourth proportional to 268,908.95, 403,381.91 and 88,994.05 is: 133,497.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,908.95 : 403,381.91 = 88,994.05 : x
  2. Step 2: Convert to fraction form
    268,908.95/403,381.91 = 88,994.05/x
  3. Step 3: Cross multiply
    268,908.95x = 403,381.91 × 88,994.05
  4. Step 4: Simplify right side
    268,908.95x = 35,898,589,081.67
  5. Step 5: Solve for x
    x = 35,898,589,081.67/268,908.95
  6. Step 6: Final answer
    x = 133,497.19

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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.