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Finding the Fourth Proportional to 220,216.45, 303,920.03 and 123,436.75

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Solution

The fourth proportional to 220,216.45, 303,920.03 and 123,436.75 is: 170,354.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,216.45 : 303,920.03 = 123,436.75 : x
  2. Step 2: Convert to fraction form
    220,216.45/303,920.03 = 123,436.75/x
  3. Step 3: Cross multiply
    220,216.45x = 303,920.03 × 123,436.75
  4. Step 4: Simplify right side
    220,216.45x = 37,514,900,763.10
  5. Step 5: Solve for x
    x = 37,514,900,763.10/220,216.45
  6. Step 6: Final answer
    x = 170,354.67

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.