Finding the Fourth Proportional to 300,328.72, 414,454.80 and 192,899.68
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Solution
The fourth proportional to 300,328.72, 414,454.80 and 192,899.68 is: 266,202.31
Step by Step Solution
- Step 1: Write the proportion equation
300,328.72 : 414,454.80 = 192,899.68 : x - Step 2: Convert to fraction form
300,328.72/414,454.80 = 192,899.68/x - Step 3: Cross multiply
300,328.72x = 414,454.80 × 192,899.68 - Step 4: Simplify right side
300,328.72x = 79,948,198,294.46 - Step 5: Solve for x
x = 79,948,198,294.46/300,328.72 - Step 6: Final answer
x = 266,202.31
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.