Finding the Fourth Proportional to 252,603.20, 348,592.20 and 139,425.68
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Solution
The fourth proportional to 252,603.20, 348,592.20 and 139,425.68 is: 192,407.32
Step by Step Solution
- Step 1: Write the proportion equation
252,603.20 : 348,592.20 = 139,425.68 : x - Step 2: Convert to fraction form
252,603.20/348,592.20 = 139,425.68/x - Step 3: Cross multiply
252,603.20x = 348,592.20 × 139,425.68 - Step 4: Simplify right side
252,603.20x = 48,602,704,527.70 - Step 5: Solve for x
x = 48,602,704,527.70/252,603.20 - Step 6: Final answer
x = 192,407.32
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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.