Home / 438,121.26-657,183.24-122,580.90

Finding the Fourth Proportional to 438,121.26, 657,183.24 and 122,580.90

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Solution

The fourth proportional to 438,121.26, 657,183.24 and 122,580.90 is: 183,871.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,121.26 : 657,183.24 = 122,580.90 : x
  2. Step 2: Convert to fraction form
    438,121.26/657,183.24 = 122,580.90/x
  3. Step 3: Cross multiply
    438,121.26x = 657,183.24 × 122,580.90
  4. Step 4: Simplify right side
    438,121.26x = 80,558,113,024.12
  5. Step 5: Solve for x
    x = 80,558,113,024.12/438,121.26
  6. Step 6: Final answer
    x = 183,871.73

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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.