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Finding the Fourth Proportional to 180,667.95, 270,892.58 and 80,809.53

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Solution

The fourth proportional to 180,667.95, 270,892.58 and 80,809.53 is: 121,165.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,667.95 : 270,892.58 = 80,809.53 : x
  2. Step 2: Convert to fraction form
    180,667.95/270,892.58 = 80,809.53/x
  3. Step 3: Cross multiply
    180,667.95x = 270,892.58 × 80,809.53
  4. Step 4: Simplify right side
    180,667.95x = 21,890,701,666.24
  5. Step 5: Solve for x
    x = 21,890,701,666.24/180,667.95
  6. Step 6: Final answer
    x = 121,165.38

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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.