Finding the Fourth Proportional to 212,476.48, 318,738.07 and 70,269.95
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Solution
The fourth proportional to 212,476.48, 318,738.07 and 70,269.95 is: 105,412.65
Step by Step Solution
- Step 1: Write the proportion equation
212,476.48 : 318,738.07 = 70,269.95 : x - Step 2: Convert to fraction form
212,476.48/318,738.07 = 70,269.95/x - Step 3: Cross multiply
212,476.48x = 318,738.07 × 70,269.95 - Step 4: Simplify right side
212,476.48x = 22,397,708,866.40 - Step 5: Solve for x
x = 22,397,708,866.40/212,476.48 - Step 6: Final answer
x = 105,412.65
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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.