Home / 379,749.66-569,289.25-143,258.41

Finding the Fourth Proportional to 379,749.66, 569,289.25 and 143,258.41

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Solution

The fourth proportional to 379,749.66, 569,289.25 and 143,258.41 is: 214,761.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,749.66 : 569,289.25 = 143,258.41 : x
  2. Step 2: Convert to fraction form
    379,749.66/569,289.25 = 143,258.41/x
  3. Step 3: Cross multiply
    379,749.66x = 569,289.25 × 143,258.41
  4. Step 4: Simplify right side
    379,749.66x = 81,555,472,785.09
  5. Step 5: Solve for x
    x = 81,555,472,785.09/379,749.66
  6. Step 6: Final answer
    x = 214,761.15

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Why These Related Problems?

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