Finding the Fourth Proportional to 389,238.62, 537,202.94 and 228,157.97
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Solution
The fourth proportional to 389,238.62, 537,202.94 and 228,157.97 is: 314,889.44
Step by Step Solution
- Step 1: Write the proportion equation
389,238.62 : 537,202.94 = 228,157.97 : x - Step 2: Convert to fraction form
389,238.62/537,202.94 = 228,157.97/x - Step 3: Cross multiply
389,238.62x = 537,202.94 × 228,157.97 - Step 4: Simplify right side
389,238.62x = 122,567,128,441.63 - Step 5: Solve for x
x = 122,567,128,441.63/389,238.62 - Step 6: Final answer
x = 314,889.44
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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.