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Finding the Fourth Proportional to 207,551.40, 311,294.34 and 67,277.28

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Solution

The fourth proportional to 207,551.40, 311,294.34 and 67,277.28 is: 100,905.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,551.40 : 311,294.34 = 67,277.28 : x
  2. Step 2: Convert to fraction form
    207,551.40/311,294.34 = 67,277.28/x
  3. Step 3: Cross multiply
    207,551.40x = 311,294.34 × 67,277.28
  4. Step 4: Simplify right side
    207,551.40x = 20,943,036,474.60
  5. Step 5: Solve for x
    x = 20,943,036,474.60/207,551.40
  6. Step 6: Final answer
    x = 100,905.30

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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.