Home / 198,260.64-297,391.37-139,359.87

Finding the Fourth Proportional to 198,260.64, 297,391.37 and 139,359.87

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Solution

The fourth proportional to 198,260.64, 297,391.37 and 139,359.87 is: 209,040.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,260.64 : 297,391.37 = 139,359.87 : x
  2. Step 2: Convert to fraction form
    198,260.64/297,391.37 = 139,359.87/x
  3. Step 3: Cross multiply
    198,260.64x = 297,391.37 × 139,359.87
  4. Step 4: Simplify right side
    198,260.64x = 41,444,421,965.52
  5. Step 5: Solve for x
    x = 41,444,421,965.52/198,260.64
  6. Step 6: Final answer
    x = 209,040.09

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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.