Home / 257,201.75-385,802.67-107,360.30

Finding the Fourth Proportional to 257,201.75, 385,802.67 and 107,360.30

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Solution

The fourth proportional to 257,201.75, 385,802.67 and 107,360.30 is: 161,040.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,201.75 : 385,802.67 = 107,360.30 : x
  2. Step 2: Convert to fraction form
    257,201.75/385,802.67 = 107,360.30/x
  3. Step 3: Cross multiply
    257,201.75x = 385,802.67 × 107,360.30
  4. Step 4: Simplify right side
    257,201.75x = 41,419,890,392.00
  5. Step 5: Solve for x
    x = 41,419,890,392.00/257,201.75
  6. Step 6: Final answer
    x = 161,040.47

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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.