Finding the Fourth Proportional to 398,017.70, 548,329.98 and 276,951.08
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Solution
The fourth proportional to 398,017.70, 548,329.98 and 276,951.08 is: 381,542.28
Step by Step Solution
- Step 1: Write the proportion equation
398,017.70 : 548,329.98 = 276,951.08 : x - Step 2: Convert to fraction form
398,017.70/548,329.98 = 276,951.08/x - Step 3: Cross multiply
398,017.70x = 548,329.98 × 276,951.08 - Step 4: Simplify right side
398,017.70x = 151,860,580,157.38 - Step 5: Solve for x
x = 151,860,580,157.38/398,017.70 - Step 6: Final answer
x = 381,542.28
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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.