Finding the Fourth Proportional to 221,916.96, 306,244.80 and 126,423.84
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Solution
The fourth proportional to 221,916.96, 306,244.80 and 126,423.84 is: 174,464.55
Step by Step Solution
- Step 1: Write the proportion equation
221,916.96 : 306,244.80 = 126,423.84 : x - Step 2: Convert to fraction form
221,916.96/306,244.80 = 126,423.84/x - Step 3: Cross multiply
221,916.96x = 306,244.80 × 126,423.84 - Step 4: Simplify right side
221,916.96x = 38,716,643,596.03 - Step 5: Solve for x
x = 38,716,643,596.03/221,916.96 - Step 6: Final answer
x = 174,464.55
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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.