Finding the Fourth Proportional to 207,938.90, 311,908.35 and 202,106.90
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Solution
The fourth proportional to 207,938.90, 311,908.35 and 202,106.90 is: 303,160.35
Step by Step Solution
- Step 1: Write the proportion equation
207,938.90 : 311,908.35 = 202,106.90 : x - Step 2: Convert to fraction form
207,938.90/311,908.35 = 202,106.90/x - Step 3: Cross multiply
207,938.90x = 311,908.35 × 202,106.90 - Step 4: Simplify right side
207,938.90x = 63,038,829,702.62 - Step 5: Solve for x
x = 63,038,829,702.62/207,938.90 - Step 6: Final answer
x = 303,160.35
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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.