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Finding the Fourth Proportional to 370,554.31, 511,167.73 and 225,404.47

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Solution

The fourth proportional to 370,554.31, 511,167.73 and 225,404.47 is: 310,938.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,554.31 : 511,167.73 = 225,404.47 : x
  2. Step 2: Convert to fraction form
    370,554.31/511,167.73 = 225,404.47/x
  3. Step 3: Cross multiply
    370,554.31x = 511,167.73 × 225,404.47
  4. Step 4: Simplify right side
    370,554.31x = 115,219,491,261.75
  5. Step 5: Solve for x
    x = 115,219,491,261.75/370,554.31
  6. Step 6: Final answer
    x = 310,938.20

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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.