Home / 259,945.03-389,950.41-89,200

Finding the Fourth Proportional to 259,945.03, 389,950.41 and 89,200

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Solution

The fourth proportional to 259,945.03, 389,950.41 and 89,200 is: 133,811.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,945.03 : 389,950.41 = 89,200 : x
  2. Step 2: Convert to fraction form
    259,945.03/389,950.41 = 89,200/x
  3. Step 3: Cross multiply
    259,945.03x = 389,950.41 × 89,200
  4. Step 4: Simplify right side
    259,945.03x = 34,783,576,572
  5. Step 5: Solve for x
    x = 34,783,576,572/259,945.03
  6. Step 6: Final answer
    x = 133,811.28

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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.