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Finding the Fourth Proportional to 281,610.31, 388,622.17 and 168,459.79

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Solution

The fourth proportional to 281,610.31, 388,622.17 and 168,459.79 is: 232,474.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,610.31 : 388,622.17 = 168,459.79 : x
  2. Step 2: Convert to fraction form
    281,610.31/388,622.17 = 168,459.79/x
  3. Step 3: Cross multiply
    281,610.31x = 388,622.17 × 168,459.79
  4. Step 4: Simplify right side
    281,610.31x = 65,467,209,147.54
  5. Step 5: Solve for x
    x = 65,467,209,147.54/281,610.31
  6. Step 6: Final answer
    x = 232,474.48

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1.5x scale

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.