Finding the Fourth Proportional to 156,230.22, 215,582.28 and 87,306.96
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Solution
The fourth proportional to 156,230.22, 215,582.28 and 87,306.96 is: 120,474.99
Step by Step Solution
- Step 1: Write the proportion equation
156,230.22 : 215,582.28 = 87,306.96 : x - Step 2: Convert to fraction form
156,230.22/215,582.28 = 87,306.96/x - Step 3: Cross multiply
156,230.22x = 215,582.28 × 87,306.96 - Step 4: Simplify right side
156,230.22x = 18,821,833,496.67 - Step 5: Solve for x
x = 18,821,833,496.67/156,230.22 - Step 6: Final answer
x = 120,474.99
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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.