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Finding the Fourth Proportional to 263,005.40, 394,313.70 and 144,810.20

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Solution

The fourth proportional to 263,005.40, 394,313.70 and 144,810.20 is: 217,108.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,005.40 : 394,313.70 = 144,810.20 : x
  2. Step 2: Convert to fraction form
    263,005.40/394,313.70 = 144,810.20/x
  3. Step 3: Cross multiply
    263,005.40x = 394,313.70 × 144,810.20
  4. Step 4: Simplify right side
    263,005.40x = 57,100,645,759.74
  5. Step 5: Solve for x
    x = 57,100,645,759.74/263,005.40
  6. Step 6: Final answer
    x = 217,108.26

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.