Home / 405,955.82-608,456.22-165,921.63

Finding the Fourth Proportional to 405,955.82, 608,456.22 and 165,921.63

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Solution

The fourth proportional to 405,955.82, 608,456.22 and 165,921.63 is: 248,687.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,955.82 : 608,456.22 = 165,921.63 : x
  2. Step 2: Convert to fraction form
    405,955.82/608,456.22 = 165,921.63/x
  3. Step 3: Cross multiply
    405,955.82x = 608,456.22 × 165,921.63
  4. Step 4: Simplify right side
    405,955.82x = 100,956,047,806.04
  5. Step 5: Solve for x
    x = 100,956,047,806.04/405,955.82
  6. Step 6: Final answer
    x = 248,687.28

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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.