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Finding the Fourth Proportional to 307,850.80, 460,901.40 and 272,858.80

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Solution

The fourth proportional to 307,850.80, 460,901.40 and 272,858.80 is: 408,512.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,850.80 : 460,901.40 = 272,858.80 : x
  2. Step 2: Convert to fraction form
    307,850.80/460,901.40 = 272,858.80/x
  3. Step 3: Cross multiply
    307,850.80x = 460,901.40 × 272,858.80
  4. Step 4: Simplify right side
    307,850.80x = 125,761,002,922.32
  5. Step 5: Solve for x
    x = 125,761,002,922.32/307,850.80
  6. Step 6: Final answer
    x = 408,512.83

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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.