Finding the Fourth Proportional to 397,110.54, 547,970.70 and 235,943.68
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Solution
The fourth proportional to 397,110.54, 547,970.70 and 235,943.68 is: 325,577.42
Step by Step Solution
- Step 1: Write the proportion equation
397,110.54 : 547,970.70 = 235,943.68 : x - Step 2: Convert to fraction form
397,110.54/547,970.70 = 235,943.68/x - Step 3: Cross multiply
397,110.54x = 547,970.70 × 235,943.68 - Step 4: Simplify right side
397,110.54x = 129,290,223,490.18 - Step 5: Solve for x
x = 129,290,223,490.18/397,110.54 - Step 6: Final answer
x = 325,577.42
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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.