Finding the Fourth Proportional to 216,403.80, 324,605.70 and 163,915.80
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Solution
The fourth proportional to 216,403.80, 324,605.70 and 163,915.80 is: 245,873.70
Step by Step Solution
- Step 1: Write the proportion equation
216,403.80 : 324,605.70 = 163,915.80 : x - Step 2: Convert to fraction form
216,403.80/324,605.70 = 163,915.80/x - Step 3: Cross multiply
216,403.80x = 324,605.70 × 163,915.80 - Step 4: Simplify right side
216,403.80x = 53,208,003,000.06 - Step 5: Solve for x
x = 53,208,003,000.06/216,403.80 - Step 6: Final answer
x = 245,873.70
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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.