Finding the Fourth Proportional to 311,984.70, 468,052.65 and 90,368.70
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Solution
The fourth proportional to 311,984.70, 468,052.65 and 90,368.70 is: 135,574.95
Step by Step Solution
- Step 1: Write the proportion equation
311,984.70 : 468,052.65 = 90,368.70 : x - Step 2: Convert to fraction form
311,984.70/468,052.65 = 90,368.70/x - Step 3: Cross multiply
311,984.70x = 468,052.65 × 90,368.70 - Step 4: Simplify right side
311,984.70x = 42,297,309,512.06 - Step 5: Solve for x
x = 42,297,309,512.06/311,984.70 - Step 6: Final answer
x = 135,574.95
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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.