Home / 280,137.60-419,914.80-153,583.20

Finding the Fourth Proportional to 280,137.60, 419,914.80 and 153,583.20

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Solution

The fourth proportional to 280,137.60, 419,914.80 and 153,583.20 is: 230,214.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,137.60 : 419,914.80 = 153,583.20 : x
  2. Step 2: Convert to fraction form
    280,137.60/419,914.80 = 153,583.20/x
  3. Step 3: Cross multiply
    280,137.60x = 419,914.80 × 153,583.20
  4. Step 4: Simplify right side
    280,137.60x = 64,491,858,711.36
  5. Step 5: Solve for x
    x = 64,491,858,711.36/280,137.60
  6. Step 6: Final answer
    x = 230,214.93

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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.