Finding the Fourth Proportional to 308,623.80, 462,935.70 and 256,135.80
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Solution
The fourth proportional to 308,623.80, 462,935.70 and 256,135.80 is: 384,203.70
Step by Step Solution
- Step 1: Write the proportion equation
308,623.80 : 462,935.70 = 256,135.80 : x - Step 2: Convert to fraction form
308,623.80/462,935.70 = 256,135.80/x - Step 3: Cross multiply
308,623.80x = 462,935.70 × 256,135.80 - Step 4: Simplify right side
308,623.80x = 118,574,405,868.06 - Step 5: Solve for x
x = 118,574,405,868.06/308,623.80 - Step 6: Final answer
x = 384,203.70
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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.