Home / 258,343.88-356,516.37-145,166.63

Finding the Fourth Proportional to 258,343.88, 356,516.37 and 145,166.63

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Solution

The fourth proportional to 258,343.88, 356,516.37 and 145,166.63 is: 200,330.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,343.88 : 356,516.37 = 145,166.63 : x
  2. Step 2: Convert to fraction form
    258,343.88/356,516.37 = 145,166.63/x
  3. Step 3: Cross multiply
    258,343.88x = 356,516.37 × 145,166.63
  4. Step 4: Simplify right side
    258,343.88x = 51,754,278,190.15
  5. Step 5: Solve for x
    x = 51,754,278,190.15/258,343.88
  6. Step 6: Final answer
    x = 200,330.97

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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.