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Finding the Fourth Proportional to 221,849.84, 306,215.56 and 131,237.30

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Solution

The fourth proportional to 221,849.84, 306,215.56 and 131,237.30 is: 181,144.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,849.84 : 306,215.56 = 131,237.30 : x
  2. Step 2: Convert to fraction form
    221,849.84/306,215.56 = 131,237.30/x
  3. Step 3: Cross multiply
    221,849.84x = 306,215.56 × 131,237.30
  4. Step 4: Simplify right side
    221,849.84x = 40,186,903,312.39
  5. Step 5: Solve for x
    x = 40,186,903,312.39/221,849.84
  6. Step 6: Final answer
    x = 181,144.61

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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.