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Finding the Fourth Proportional to 279,237.16, 419,030.70 and 113,025.16

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Solution

The fourth proportional to 279,237.16, 419,030.70 and 113,025.16 is: 169,608.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,237.16 : 419,030.70 = 113,025.16 : x
  2. Step 2: Convert to fraction form
    279,237.16/419,030.70 = 113,025.16/x
  3. Step 3: Cross multiply
    279,237.16x = 419,030.70 × 113,025.16
  4. Step 4: Simplify right side
    279,237.16x = 47,361,011,912.41
  5. Step 5: Solve for x
    x = 47,361,011,912.41/279,237.16
  6. Step 6: Final answer
    x = 169,608.56

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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.