Finding the Fourth Proportional to 212,391.96, 318,631.68 and 177,574.92
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Solution
The fourth proportional to 212,391.96, 318,631.68 and 177,574.92 is: 266,398.95
Step by Step Solution
- Step 1: Write the proportion equation
212,391.96 : 318,631.68 = 177,574.92 : x - Step 2: Convert to fraction form
212,391.96/318,631.68 = 177,574.92/x - Step 3: Cross multiply
212,391.96x = 318,631.68 × 177,574.92 - Step 4: Simplify right side
212,391.96x = 56,580,995,085.47 - Step 5: Solve for x
x = 56,580,995,085.47/212,391.96 - Step 6: Final answer
x = 266,398.95
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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.