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Finding the Fourth Proportional to 263,117.20, 394,384.20 and 144,873.40

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Solution

The fourth proportional to 263,117.20, 394,384.20 and 144,873.40 is: 217,149.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,117.20 : 394,384.20 = 144,873.40 : x
  2. Step 2: Convert to fraction form
    263,117.20/394,384.20 = 144,873.40/x
  3. Step 3: Cross multiply
    263,117.20x = 394,384.20 × 144,873.40
  4. Step 4: Simplify right side
    263,117.20x = 57,135,779,960.28
  5. Step 5: Solve for x
    x = 57,135,779,960.28/263,117.20
  6. Step 6: Final answer
    x = 217,149.54

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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.