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Finding the Fourth Proportional to 202,285.30, 303,427.95 and 143,187.70

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Solution

The fourth proportional to 202,285.30, 303,427.95 and 143,187.70 is: 214,781.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,285.30 : 303,427.95 = 143,187.70 : x
  2. Step 2: Convert to fraction form
    202,285.30/303,427.95 = 143,187.70/x
  3. Step 3: Cross multiply
    202,285.30x = 303,427.95 × 143,187.70
  4. Step 4: Simplify right side
    202,285.30x = 43,447,150,276.22
  5. Step 5: Solve for x
    x = 43,447,150,276.22/202,285.30
  6. Step 6: Final answer
    x = 214,781.55

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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.