Home / 379,749.04-569,288.32-143,257.79

Finding the Fourth Proportional to 379,749.04, 569,288.32 and 143,257.79

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Solution

The fourth proportional to 379,749.04, 569,288.32 and 143,257.79 is: 214,760.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,749.04 : 569,288.32 = 143,257.79 : x
  2. Step 2: Convert to fraction form
    379,749.04/569,288.32 = 143,257.79/x
  3. Step 3: Cross multiply
    379,749.04x = 569,288.32 × 143,257.79
  4. Step 4: Simplify right side
    379,749.04x = 81,554,987,661.09
  5. Step 5: Solve for x
    x = 81,554,987,661.09/379,749.04
  6. Step 6: Final answer
    x = 214,760.22

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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.