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Finding the Fourth Proportional to 371,020.64, 511,440.36 and 227,514.56

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Solution

The fourth proportional to 371,020.64, 511,440.36 and 227,514.56 is: 313,621.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,020.64 : 511,440.36 = 227,514.56 : x
  2. Step 2: Convert to fraction form
    371,020.64/511,440.36 = 227,514.56/x
  3. Step 3: Cross multiply
    371,020.64x = 511,440.36 × 227,514.56
  4. Step 4: Simplify right side
    371,020.64x = 116,360,128,471.64
  5. Step 5: Solve for x
    x = 116,360,128,471.64/371,020.64
  6. Step 6: Final answer
    x = 313,621.71

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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.