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Finding the Fourth Proportional to 221,205.42, 330,193.23 and 189,817.19

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Solution

The fourth proportional to 221,205.42, 330,193.23 and 189,817.19 is: 283,340.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,205.42 : 330,193.23 = 189,817.19 : x
  2. Step 2: Convert to fraction form
    221,205.42/330,193.23 = 189,817.19/x
  3. Step 3: Cross multiply
    221,205.42x = 330,193.23 × 189,817.19
  4. Step 4: Simplify right side
    221,205.42x = 62,676,349,424.66
  5. Step 5: Solve for x
    x = 62,676,349,424.66/221,205.42
  6. Step 6: Final answer
    x = 283,340.03

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.