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Finding the Fourth Proportional to 207,016.31, 310,128.53 and 173,496.79

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Solution

The fourth proportional to 207,016.31, 310,128.53 and 173,496.79 is: 259,913.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,016.31 : 310,128.53 = 173,496.79 : x
  2. Step 2: Convert to fraction form
    207,016.31/310,128.53 = 173,496.79/x
  3. Step 3: Cross multiply
    207,016.31x = 310,128.53 × 173,496.79
  4. Step 4: Simplify right side
    207,016.31x = 53,806,304,442.42
  5. Step 5: Solve for x
    x = 53,806,304,442.42/207,016.31
  6. Step 6: Final answer
    x = 259,913.36

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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.