Home / 259,021.56-388,260.18-118,664.76

Finding the Fourth Proportional to 259,021.56, 388,260.18 and 118,664.76

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Solution

The fourth proportional to 259,021.56, 388,260.18 and 118,664.76 is: 177,872.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,021.56 : 388,260.18 = 118,664.76 : x
  2. Step 2: Convert to fraction form
    259,021.56/388,260.18 = 118,664.76/x
  3. Step 3: Cross multiply
    259,021.56x = 388,260.18 × 118,664.76
  4. Step 4: Simplify right side
    259,021.56x = 46,072,801,077.26
  5. Step 5: Solve for x
    x = 46,072,801,077.26/259,021.56
  6. Step 6: Final answer
    x = 177,872.46

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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.