Finding the Fourth Proportional to 216,315.14, 298,513.11 and 119,518.70
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Solution
The fourth proportional to 216,315.14, 298,513.11 and 119,518.70 is: 164,934.81
Step by Step Solution
- Step 1: Write the proportion equation
216,315.14 : 298,513.11 = 119,518.70 : x - Step 2: Convert to fraction form
216,315.14/298,513.11 = 119,518.70/x - Step 3: Cross multiply
216,315.14x = 298,513.11 × 119,518.70 - Step 4: Simplify right side
216,315.14x = 35,677,897,879.62 - Step 5: Solve for x
x = 35,677,897,879.62/216,315.14 - Step 6: Final answer
x = 164,934.81
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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.