Finding the Fourth Proportional to 208,207.05, 312,313.14 and 73,275.15
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Solution
The fourth proportional to 208,207.05, 312,313.14 and 73,275.15 is: 109,913.63
Step by Step Solution
- Step 1: Write the proportion equation
208,207.05 : 312,313.14 = 73,275.15 : x - Step 2: Convert to fraction form
208,207.05/312,313.14 = 73,275.15/x - Step 3: Cross multiply
208,207.05x = 312,313.14 × 73,275.15 - Step 4: Simplify right side
208,207.05x = 22,884,792,180.47 - Step 5: Solve for x
x = 22,884,792,180.47/208,207.05 - Step 6: Final answer
x = 109,913.63
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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.