Finding the Fourth Proportional to 288,737.23, 398,459.90 and 159,668.99
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Solution
The fourth proportional to 288,737.23, 398,459.90 and 159,668.99 is: 220,344.60
Step by Step Solution
- Step 1: Write the proportion equation
288,737.23 : 398,459.90 = 159,668.99 : x - Step 2: Convert to fraction form
288,737.23/398,459.90 = 159,668.99/x - Step 3: Cross multiply
288,737.23x = 398,459.90 × 159,668.99 - Step 4: Simplify right side
288,737.23x = 63,621,689,788.50 - Step 5: Solve for x
x = 63,621,689,788.50/288,737.23 - Step 6: Final answer
x = 220,344.60
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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.