Finding the Fourth Proportional to 438,470.70, 657,706.05 and 248,857.80
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Solution
The fourth proportional to 438,470.70, 657,706.05 and 248,857.80 is: 373,286.70
Step by Step Solution
- Step 1: Write the proportion equation
438,470.70 : 657,706.05 = 248,857.80 : x - Step 2: Convert to fraction form
438,470.70/657,706.05 = 248,857.80/x - Step 3: Cross multiply
438,470.70x = 657,706.05 × 248,857.80 - Step 4: Simplify right side
438,470.70x = 163,675,280,649.69 - Step 5: Solve for x
x = 163,675,280,649.69/438,470.70 - Step 6: Final answer
x = 373,286.70
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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.