Finding the Fourth Proportional to 212,181.28, 318,275.58 and 71,943.52
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Solution
The fourth proportional to 212,181.28, 318,275.58 and 71,943.52 is: 107,916.52
Step by Step Solution
- Step 1: Write the proportion equation
212,181.28 : 318,275.58 = 71,943.52 : x - Step 2: Convert to fraction form
212,181.28/318,275.58 = 71,943.52/x - Step 3: Cross multiply
212,181.28x = 318,275.58 × 71,943.52 - Step 4: Simplify right side
212,181.28x = 22,897,865,555.24 - Step 5: Solve for x
x = 22,897,865,555.24/212,181.28 - Step 6: Final answer
x = 107,916.52
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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.