Finding the Fourth Proportional to 438,193.70, 657,312.15 and 228,241.70
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Solution
The fourth proportional to 438,193.70, 657,312.15 and 228,241.70 is: 342,373.80
Step by Step Solution
- Step 1: Write the proportion equation
438,193.70 : 657,312.15 = 228,241.70 : x - Step 2: Convert to fraction form
438,193.70/657,312.15 = 228,241.70/x - Step 3: Cross multiply
438,193.70x = 657,312.15 × 228,241.70 - Step 4: Simplify right side
438,193.70x = 150,026,042,546.66 - Step 5: Solve for x
x = 150,026,042,546.66/438,193.70 - Step 6: Final answer
x = 342,373.80
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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.