Home / 208,232.32-312,476.92-81,850.36

Finding the Fourth Proportional to 208,232.32, 312,476.92 and 81,850.36

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Solution

The fourth proportional to 208,232.32, 312,476.92 and 81,850.36 is: 122,826.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,232.32 : 312,476.92 = 81,850.36 : x
  2. Step 2: Convert to fraction form
    208,232.32/312,476.92 = 81,850.36/x
  3. Step 3: Cross multiply
    208,232.32x = 312,476.92 × 81,850.36
  4. Step 4: Simplify right side
    208,232.32x = 25,576,348,393.69
  5. Step 5: Solve for x
    x = 25,576,348,393.69/208,232.32
  6. Step 6: Final answer
    x = 122,826.03

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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.