Finding the Fourth Proportional to 215,689.53, 323,536.35 and 57,917.99
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Solution
The fourth proportional to 215,689.53, 323,536.35 and 57,917.99 is: 86,877.53
Step by Step Solution
- Step 1: Write the proportion equation
215,689.53 : 323,536.35 = 57,917.99 : x - Step 2: Convert to fraction form
215,689.53/323,536.35 = 57,917.99/x - Step 3: Cross multiply
215,689.53x = 323,536.35 × 57,917.99 - Step 4: Simplify right side
215,689.53x = 18,738,574,127.18 - Step 5: Solve for x
x = 18,738,574,127.18/215,689.53 - Step 6: Final answer
x = 86,877.53
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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.