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Finding the Fourth Proportional to 221,778.06, 306,053.80 and 119,803.50

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Solution

The fourth proportional to 221,778.06, 306,053.80 and 119,803.50 is: 165,328.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,778.06 : 306,053.80 = 119,803.50 : x
  2. Step 2: Convert to fraction form
    221,778.06/306,053.80 = 119,803.50/x
  3. Step 3: Cross multiply
    221,778.06x = 306,053.80 × 119,803.50
  4. Step 4: Simplify right side
    221,778.06x = 36,666,316,428.30
  5. Step 5: Solve for x
    x = 36,666,316,428.30/221,778.06
  6. Step 6: Final answer
    x = 165,328.87

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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.