Home / 234,639.81-323,778.70-143,999.59

Finding the Fourth Proportional to 234,639.81, 323,778.70 and 143,999.59

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Solution

The fourth proportional to 234,639.81, 323,778.70 and 143,999.59 is: 198,704.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,639.81 : 323,778.70 = 143,999.59 : x
  2. Step 2: Convert to fraction form
    234,639.81/323,778.70 = 143,999.59/x
  3. Step 3: Cross multiply
    234,639.81x = 323,778.70 × 143,999.59
  4. Step 4: Simplify right side
    234,639.81x = 46,624,000,050.73
  5. Step 5: Solve for x
    x = 46,624,000,050.73/234,639.81
  6. Step 6: Final answer
    x = 198,704.56

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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.