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Finding the Fourth Proportional to 307,126.80, 461,467.80 and 272,912.40

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Solution

The fourth proportional to 307,126.80, 461,467.80 and 272,912.40 is: 410,059.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,126.80 : 461,467.80 = 272,912.40 : x
  2. Step 2: Convert to fraction form
    307,126.80/461,467.80 = 272,912.40/x
  3. Step 3: Cross multiply
    307,126.80x = 461,467.80 × 272,912.40
  4. Step 4: Simplify right side
    307,126.80x = 125,940,284,820.72
  5. Step 5: Solve for x
    x = 125,940,284,820.72/307,126.80
  6. Step 6: Final answer
    x = 410,059.57

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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.