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Finding the Fourth Proportional to 227,990.89, 342,023.09 and 70,219.29

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Solution

The fourth proportional to 227,990.89, 342,023.09 and 70,219.29 is: 105,340.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,990.89 : 342,023.09 = 70,219.29 : x
  2. Step 2: Convert to fraction form
    227,990.89/342,023.09 = 70,219.29/x
  3. Step 3: Cross multiply
    227,990.89x = 342,023.09 × 70,219.29
  4. Step 4: Simplify right side
    227,990.89x = 24,016,618,192.31
  5. Step 5: Solve for x
    x = 24,016,618,192.31/227,990.89
  6. Step 6: Final answer
    x = 105,340.25

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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.