Finding the Fourth Proportional to 163,523.20, 245,284.80 and 121,532.80
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Solution
The fourth proportional to 163,523.20, 245,284.80 and 121,532.80 is: 182,299.20
Step by Step Solution
- Step 1: Write the proportion equation
163,523.20 : 245,284.80 = 121,532.80 : x - Step 2: Convert to fraction form
163,523.20/245,284.80 = 121,532.80/x - Step 3: Cross multiply
163,523.20x = 245,284.80 × 121,532.80 - Step 4: Simplify right side
163,523.20x = 29,810,148,541.44 - Step 5: Solve for x
x = 29,810,148,541.44/163,523.20 - Step 6: Final answer
x = 182,299.20
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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.