Home / 261,830.22-392,379.24-141,627.69

Finding the Fourth Proportional to 261,830.22, 392,379.24 and 141,627.69

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Solution

The fourth proportional to 261,830.22, 392,379.24 and 141,627.69 is: 212,243.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,830.22 : 392,379.24 = 141,627.69 : x
  2. Step 2: Convert to fraction form
    261,830.22/392,379.24 = 141,627.69/x
  3. Step 3: Cross multiply
    261,830.22x = 392,379.24 × 141,627.69
  4. Step 4: Simplify right side
    261,830.22x = 55,571,765,099.60
  5. Step 5: Solve for x
    x = 55,571,765,099.60/261,830.22
  6. Step 6: Final answer
    x = 212,243.51

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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.