Finding the Fourth Proportional to 379,815.18, 569,219.76 and 201,939.18
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Solution
The fourth proportional to 379,815.18, 569,219.76 and 201,939.18 is: 302,641.33
Step by Step Solution
- Step 1: Write the proportion equation
379,815.18 : 569,219.76 = 201,939.18 : x - Step 2: Convert to fraction form
379,815.18/569,219.76 = 201,939.18/x - Step 3: Cross multiply
379,815.18x = 569,219.76 × 201,939.18 - Step 4: Simplify right side
379,815.18x = 114,947,771,574.20 - Step 5: Solve for x
x = 114,947,771,574.20/379,815.18 - Step 6: Final answer
x = 302,641.33
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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.