Finding the Fourth Proportional to 209,595.19, 315,804.98 and 172,975.49
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Solution
The fourth proportional to 209,595.19, 315,804.98 and 172,975.49 is: 260,628.70
Step by Step Solution
- Step 1: Write the proportion equation
209,595.19 : 315,804.98 = 172,975.49 : x - Step 2: Convert to fraction form
209,595.19/315,804.98 = 172,975.49/x - Step 3: Cross multiply
209,595.19x = 315,804.98 × 172,975.49 - Step 4: Simplify right side
209,595.19x = 54,626,521,159.94 - Step 5: Solve for x
x = 54,626,521,159.94/209,595.19 - Step 6: Final answer
x = 260,628.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.