Finding the Fourth Proportional to 256,211.99, 384,551.21 and 136,369.55
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Solution
The fourth proportional to 256,211.99, 384,551.21 and 136,369.55 is: 204,678.46
Step by Step Solution
- Step 1: Write the proportion equation
256,211.99 : 384,551.21 = 136,369.55 : x - Step 2: Convert to fraction form
256,211.99/384,551.21 = 136,369.55/x - Step 3: Cross multiply
256,211.99x = 384,551.21 × 136,369.55 - Step 4: Simplify right side
256,211.99x = 52,441,075,739.19 - Step 5: Solve for x
x = 52,441,075,739.19/256,211.99 - Step 6: Final answer
x = 204,678.46
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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.