Finding the Fourth Proportional to 639,961.77, 959,997.78 and 166,647.99
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Solution
The fourth proportional to 639,961.77, 959,997.78 and 166,647.99 is: 249,986.34
Step by Step Solution
- Step 1: Write the proportion equation
639,961.77 : 959,997.78 = 166,647.99 : x - Step 2: Convert to fraction form
639,961.77/959,997.78 = 166,647.99/x - Step 3: Cross multiply
639,961.77x = 959,997.78 × 166,647.99 - Step 4: Simplify right side
639,961.77x = 159,981,700,441.46 - Step 5: Solve for x
x = 159,981,700,441.46/639,961.77 - Step 6: Final answer
x = 249,986.34
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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.