Finding the Fourth Proportional to 216,211.97, 324,317.96 and 157,421.76
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Solution
The fourth proportional to 216,211.97, 324,317.96 and 157,421.76 is: 236,132.65
Step by Step Solution
- Step 1: Write the proportion equation
216,211.97 : 324,317.96 = 157,421.76 : x - Step 2: Convert to fraction form
216,211.97/324,317.96 = 157,421.76/x - Step 3: Cross multiply
216,211.97x = 324,317.96 × 157,421.76 - Step 4: Simplify right side
216,211.97x = 51,054,703,275.70 - Step 5: Solve for x
x = 51,054,703,275.70/216,211.97 - Step 6: Final answer
x = 236,132.65
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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.