Finding the Fourth Proportional to 216,351.36, 298,545.12 and 120,844.80
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Solution
The fourth proportional to 216,351.36, 298,545.12 and 120,844.80 is: 166,754.79
Step by Step Solution
- Step 1: Write the proportion equation
216,351.36 : 298,545.12 = 120,844.80 : x - Step 2: Convert to fraction form
216,351.36/298,545.12 = 120,844.80/x - Step 3: Cross multiply
216,351.36x = 298,545.12 × 120,844.80 - Step 4: Simplify right side
216,351.36x = 36,077,625,317.38 - Step 5: Solve for x
x = 36,077,625,317.38/216,351.36 - Step 6: Final answer
x = 166,754.79
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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.