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Finding the Fourth Proportional to 216,861.06, 325,663.83 and 133,113

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Solution

The fourth proportional to 216,861.06, 325,663.83 and 133,113 is: 199,897.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,861.06 : 325,663.83 = 133,113 : x
  2. Step 2: Convert to fraction form
    216,861.06/325,663.83 = 133,113/x
  3. Step 3: Cross multiply
    216,861.06x = 325,663.83 × 133,113
  4. Step 4: Simplify right side
    216,861.06x = 43,350,089,402.79
  5. Step 5: Solve for x
    x = 43,350,089,402.79/216,861.06
  6. Step 6: Final answer
    x = 199,897.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.