Home / 238,735.83-329,345.00-143,076.45

Finding the Fourth Proportional to 238,735.83, 329,345.00 and 143,076.45

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Solution

The fourth proportional to 238,735.83, 329,345.00 and 143,076.45 is: 197,379.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,735.83 : 329,345.00 = 143,076.45 : x
  2. Step 2: Convert to fraction form
    238,735.83/329,345.00 = 143,076.45/x
  3. Step 3: Cross multiply
    238,735.83x = 329,345.00 × 143,076.45
  4. Step 4: Simplify right side
    238,735.83x = 47,121,511,063.14
  5. Step 5: Solve for x
    x = 47,121,511,063.14/238,735.83
  6. Step 6: Final answer
    x = 197,379.30

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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.