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Finding the Fourth Proportional to 221,266.84, 331,796.56 and 80,927.32

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Solution

The fourth proportional to 221,266.84, 331,796.56 and 80,927.32 is: 121,353.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,266.84 : 331,796.56 = 80,927.32 : x
  2. Step 2: Convert to fraction form
    221,266.84/331,796.56 = 80,927.32/x
  3. Step 3: Cross multiply
    221,266.84x = 331,796.56 × 80,927.32
  4. Step 4: Simplify right side
    221,266.84x = 26,851,406,386.02
  5. Step 5: Solve for x
    x = 26,851,406,386.02/221,266.84
  6. Step 6: Final answer
    x = 121,353.05

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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.