Home / 309,865.00-427,622.18-173,907.37

Finding the Fourth Proportional to 309,865.00, 427,622.18 and 173,907.37

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Solution

The fourth proportional to 309,865.00, 427,622.18 and 173,907.37 is: 239,996.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,865.00 : 427,622.18 = 173,907.37 : x
  2. Step 2: Convert to fraction form
    309,865.00/427,622.18 = 173,907.37/x
  3. Step 3: Cross multiply
    309,865.00x = 427,622.18 × 173,907.37
  4. Step 4: Simplify right side
    309,865.00x = 74,366,647,807.93
  5. Step 5: Solve for x
    x = 74,366,647,807.93/309,865.00
  6. Step 6: Final answer
    x = 239,996.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.