Finding the Fourth Proportional to 303,489.70, 455,234.55 and 163,521.70
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Solution
The fourth proportional to 303,489.70, 455,234.55 and 163,521.70 is: 245,282.55
Step by Step Solution
- Step 1: Write the proportion equation
303,489.70 : 455,234.55 = 163,521.70 : x - Step 2: Convert to fraction form
303,489.70/455,234.55 = 163,521.70/x - Step 3: Cross multiply
303,489.70x = 455,234.55 × 163,521.70 - Step 4: Simplify right side
303,489.70x = 74,440,727,514.74 - Step 5: Solve for x
x = 74,440,727,514.74/303,489.70 - Step 6: Final answer
x = 245,282.55
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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.