Finding the Fourth Proportional to 208,868.40, 288,237.42 and 113,374.26
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Solution
The fourth proportional to 208,868.40, 288,237.42 and 113,374.26 is: 156,455.95
Step by Step Solution
- Step 1: Write the proportion equation
208,868.40 : 288,237.42 = 113,374.26 : x - Step 2: Convert to fraction form
208,868.40/288,237.42 = 113,374.26/x - Step 3: Cross multiply
208,868.40x = 288,237.42 × 113,374.26 - Step 4: Simplify right side
208,868.40x = 32,678,704,196.81 - Step 5: Solve for x
x = 32,678,704,196.81/208,868.40 - Step 6: Final answer
x = 156,455.95
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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.