Finding the Fourth Proportional to 355,427.10, 532,363.05 and 214,940.70
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Solution
The fourth proportional to 355,427.10, 532,363.05 and 214,940.70 is: 321,940.80
Step by Step Solution
- Step 1: Write the proportion equation
355,427.10 : 532,363.05 = 214,940.70 : x - Step 2: Convert to fraction form
355,427.10/532,363.05 = 214,940.70/x - Step 3: Cross multiply
355,427.10x = 532,363.05 × 214,940.70 - Step 4: Simplify right side
355,427.10x = 114,426,486,621.14 - Step 5: Solve for x
x = 114,426,486,621.14/355,427.10 - Step 6: Final answer
x = 321,940.80
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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.