Home / 831,129.69-1,246,694.87-200,043.50

Finding the Fourth Proportional to 831,129.69, 1,246,694.87 and 200,043.50

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Solution

The fourth proportional to 831,129.69, 1,246,694.87 and 200,043.50 is: 300,065.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,129.69 : 1,246,694.87 = 200,043.50 : x
  2. Step 2: Convert to fraction form
    831,129.69/1,246,694.87 = 200,043.50/x
  3. Step 3: Cross multiply
    831,129.69x = 1,246,694.87 × 200,043.50
  4. Step 4: Simplify right side
    831,129.69x = 249,393,197,993.15
  5. Step 5: Solve for x
    x = 249,393,197,993.15/831,129.69
  6. Step 6: Final answer
    x = 300,065.32

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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.