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Finding the Fourth Proportional to 202,340.70, 303,511.05 and 83,999.70

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Solution

The fourth proportional to 202,340.70, 303,511.05 and 83,999.70 is: 125,999.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,340.70 : 303,511.05 = 83,999.70 : x
  2. Step 2: Convert to fraction form
    202,340.70/303,511.05 = 83,999.70/x
  3. Step 3: Cross multiply
    202,340.70x = 303,511.05 × 83,999.70
  4. Step 4: Simplify right side
    202,340.70x = 25,494,837,146.69
  5. Step 5: Solve for x
    x = 25,494,837,146.69/202,340.70
  6. Step 6: Final answer
    x = 125,999.55

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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.