Finding the Fourth Proportional to 639,940.77, 959,966.24 and 166,626.99
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Solution
The fourth proportional to 639,940.77, 959,966.24 and 166,626.99 is: 249,954.83
Step by Step Solution
- Step 1: Write the proportion equation
639,940.77 : 959,966.24 = 166,626.99 : x - Step 2: Convert to fraction form
639,940.77/959,966.24 = 166,626.99/x - Step 3: Cross multiply
639,940.77x = 959,966.24 × 166,626.99 - Step 4: Simplify right side
639,940.77x = 159,956,284,239.68 - Step 5: Solve for x
x = 159,956,284,239.68/639,940.77 - Step 6: Final answer
x = 249,954.83
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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.