Home / 208,296.85-312,943.73-133,563.41

Finding the Fourth Proportional to 208,296.85, 312,943.73 and 133,563.41

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Solution

The fourth proportional to 208,296.85, 312,943.73 and 133,563.41 is: 200,664.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,296.85 : 312,943.73 = 133,563.41 : x
  2. Step 2: Convert to fraction form
    208,296.85/312,943.73 = 133,563.41/x
  3. Step 3: Cross multiply
    208,296.85x = 312,943.73 × 133,563.41
  4. Step 4: Simplify right side
    208,296.85x = 41,797,831,831.46
  5. Step 5: Solve for x
    x = 41,797,831,831.46/208,296.85
  6. Step 6: Final answer
    x = 200,664.74

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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.