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Finding the Fourth Proportional to 270,264.84, 405,454.68 and 80,723.16

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Solution

The fourth proportional to 270,264.84, 405,454.68 and 80,723.16 is: 121,101.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,264.84 : 405,454.68 = 80,723.16 : x
  2. Step 2: Convert to fraction form
    270,264.84/405,454.68 = 80,723.16/x
  3. Step 3: Cross multiply
    270,264.84x = 405,454.68 × 80,723.16
  4. Step 4: Simplify right side
    270,264.84x = 32,729,583,006.39
  5. Step 5: Solve for x
    x = 32,729,583,006.39/270,264.84
  6. Step 6: Final answer
    x = 121,101.89

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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.