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Finding the Fourth Proportional to 279,880.60, 419,700.94 and 130,105.26

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Solution

The fourth proportional to 279,880.60, 419,700.94 and 130,105.26 is: 195,102.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,880.60 : 419,700.94 = 130,105.26 : x
  2. Step 2: Convert to fraction form
    279,880.60/419,700.94 = 130,105.26/x
  3. Step 3: Cross multiply
    279,880.60x = 419,700.94 × 130,105.26
  4. Step 4: Simplify right side
    279,880.60x = 54,605,299,920.94
  5. Step 5: Solve for x
    x = 54,605,299,920.94/279,880.60
  6. Step 6: Final answer
    x = 195,102.13

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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.