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Finding the Fourth Proportional to 340,080.80, 510,099.60 and 115,440.80

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Solution

The fourth proportional to 340,080.80, 510,099.60 and 115,440.80 is: 173,153.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,080.80 : 510,099.60 = 115,440.80 : x
  2. Step 2: Convert to fraction form
    340,080.80/510,099.60 = 115,440.80/x
  3. Step 3: Cross multiply
    340,080.80x = 510,099.60 × 115,440.80
  4. Step 4: Simplify right side
    340,080.80x = 58,886,305,903.68
  5. Step 5: Solve for x
    x = 58,886,305,903.68/340,080.80
  6. Step 6: Final answer
    x = 173,153.87

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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.