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Finding the Fourth Proportional to 220,515.96, 304,334.62 and 129,900.44

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Solution

The fourth proportional to 220,515.96, 304,334.62 and 129,900.44 is: 179,275.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,515.96 : 304,334.62 = 129,900.44 : x
  2. Step 2: Convert to fraction form
    220,515.96/304,334.62 = 129,900.44/x
  3. Step 3: Cross multiply
    220,515.96x = 304,334.62 × 129,900.44
  4. Step 4: Simplify right side
    220,515.96x = 39,533,201,045.23
  5. Step 5: Solve for x
    x = 39,533,201,045.23/220,515.96
  6. Step 6: Final answer
    x = 179,275.92

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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.