Finding the Fourth Proportional to 311,570.49, 467,355.74 and 74,913.17
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Solution
The fourth proportional to 311,570.49, 467,355.74 and 74,913.17 is: 112,369.75
Step by Step Solution
- Step 1: Write the proportion equation
311,570.49 : 467,355.74 = 74,913.17 : x - Step 2: Convert to fraction form
311,570.49/467,355.74 = 74,913.17/x - Step 3: Cross multiply
311,570.49x = 467,355.74 × 74,913.17 - Step 4: Simplify right side
311,570.49x = 35,011,097,289.75 - Step 5: Solve for x
x = 35,011,097,289.75/311,570.49 - Step 6: Final answer
x = 112,369.75
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1.5x scale
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.