Home / 373,729.43-515,758.64-212,580.33

Finding the Fourth Proportional to 373,729.43, 515,758.64 and 212,580.33

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Solution

The fourth proportional to 373,729.43, 515,758.64 and 212,580.33 is: 293,367.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,729.43 : 515,758.64 = 212,580.33 : x
  2. Step 2: Convert to fraction form
    373,729.43/515,758.64 = 212,580.33/x
  3. Step 3: Cross multiply
    373,729.43x = 515,758.64 × 212,580.33
  4. Step 4: Simplify right side
    373,729.43x = 109,640,140,828.65
  5. Step 5: Solve for x
    x = 109,640,140,828.65/373,729.43
  6. Step 6: Final answer
    x = 293,367.70

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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.