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Finding the Fourth Proportional to 311,567.25, 467,163.70 and 121,801.60

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Solution

The fourth proportional to 311,567.25, 467,163.70 and 121,801.60 is: 182,629.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,567.25 : 467,163.70 = 121,801.60 : x
  2. Step 2: Convert to fraction form
    311,567.25/467,163.70 = 121,801.60/x
  3. Step 3: Cross multiply
    311,567.25x = 467,163.70 × 121,801.60
  4. Step 4: Simplify right side
    311,567.25x = 56,901,286,401.37
  5. Step 5: Solve for x
    x = 56,901,286,401.37/311,567.25
  6. Step 6: Final answer
    x = 182,629.23

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1.5x scale

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.