Home / 379,749.16-569,288.50-143,257.92

Finding the Fourth Proportional to 379,749.16, 569,288.50 and 143,257.92

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Solution

The fourth proportional to 379,749.16, 569,288.50 and 143,257.92 is: 214,760.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,749.16 : 569,288.50 = 143,257.92 : x
  2. Step 2: Convert to fraction form
    379,749.16/569,288.50 = 143,257.92/x
  3. Step 3: Cross multiply
    379,749.16x = 569,288.50 × 143,257.92
  4. Step 4: Simplify right side
    379,749.16x = 81,555,086,389.92
  5. Step 5: Solve for x
    x = 81,555,086,389.92/379,749.16
  6. Step 6: Final answer
    x = 214,760.41

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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.