Home / 351,443.06-484,865.94-215,427.86

Finding the Fourth Proportional to 351,443.06, 484,865.94 and 215,427.86

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Solution

The fourth proportional to 351,443.06, 484,865.94 and 215,427.86 is: 297,213.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,443.06 : 484,865.94 = 215,427.86 : x
  2. Step 2: Convert to fraction form
    351,443.06/484,865.94 = 215,427.86/x
  3. Step 3: Cross multiply
    351,443.06x = 484,865.94 × 215,427.86
  4. Step 4: Simplify right side
    351,443.06x = 104,453,631,841.09
  5. Step 5: Solve for x
    x = 104,453,631,841.09/351,443.06
  6. Step 6: Final answer
    x = 297,213.53

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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.