Finding the Fourth Proportional to 208,898.95, 288,286.95 and 118,253.08
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Solution
The fourth proportional to 208,898.95, 288,286.95 and 118,253.08 is: 163,192.87
Step by Step Solution
- Step 1: Write the proportion equation
208,898.95 : 288,286.95 = 118,253.08 : x - Step 2: Convert to fraction form
208,898.95/288,286.95 = 118,253.08/x - Step 3: Cross multiply
208,898.95x = 288,286.95 × 118,253.08 - Step 4: Simplify right side
208,898.95x = 34,090,819,761.31 - Step 5: Solve for x
x = 34,090,819,761.31/208,898.95 - Step 6: Final answer
x = 163,192.87
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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.