Finding the Fourth Proportional to 216,918.07, 299,343.18 and 120,120.01
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Solution
The fourth proportional to 216,918.07, 299,343.18 and 120,120.01 is: 165,763.53
Step by Step Solution
- Step 1: Write the proportion equation
216,918.07 : 299,343.18 = 120,120.01 : x - Step 2: Convert to fraction form
216,918.07/299,343.18 = 120,120.01/x - Step 3: Cross multiply
216,918.07x = 299,343.18 × 120,120.01 - Step 4: Simplify right side
216,918.07x = 35,957,105,102.94 - Step 5: Solve for x
x = 35,957,105,102.94/216,918.07 - Step 6: Final answer
x = 165,763.53
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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.