Finding the Fourth Proportional to 216,391.80, 324,587.70 and 163,903.80
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Solution
The fourth proportional to 216,391.80, 324,587.70 and 163,903.80 is: 245,855.70
Step by Step Solution
- Step 1: Write the proportion equation
216,391.80 : 324,587.70 = 163,903.80 : x - Step 2: Convert to fraction form
216,391.80/324,587.70 = 163,903.80/x - Step 3: Cross multiply
216,391.80x = 324,587.70 × 163,903.80 - Step 4: Simplify right side
216,391.80x = 53,201,157,463.26 - Step 5: Solve for x
x = 53,201,157,463.26/216,391.80 - Step 6: Final answer
x = 245,855.70
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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.