Finding the Fourth Proportional to 639,965.77, 960,003.78 and 166,651.99
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Solution
The fourth proportional to 639,965.77, 960,003.78 and 166,651.99 is: 249,992.34
Step by Step Solution
- Step 1: Write the proportion equation
639,965.77 : 960,003.78 = 166,651.99 : x - Step 2: Convert to fraction form
639,965.77/960,003.78 = 166,651.99/x - Step 3: Cross multiply
639,965.77x = 960,003.78 × 166,651.99 - Step 4: Simplify right side
639,965.77x = 159,986,540,344.52 - Step 5: Solve for x
x = 159,986,540,344.52/639,965.77 - Step 6: Final answer
x = 249,992.34
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1.5x scale
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.