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Finding the Fourth Proportional to 219,783.00, 303,213.83 and 138,063.25

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Solution

The fourth proportional to 219,783.00, 303,213.83 and 138,063.25 is: 190,472.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,783.00 : 303,213.83 = 138,063.25 : x
  2. Step 2: Convert to fraction form
    219,783.00/303,213.83 = 138,063.25/x
  3. Step 3: Cross multiply
    219,783.00x = 303,213.83 × 138,063.25
  4. Step 4: Simplify right side
    219,783.00x = 41,862,687,280.05
  5. Step 5: Solve for x
    x = 41,862,687,280.05/219,783.00
  6. Step 6: Final answer
    x = 190,472.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.