Finding the Fourth Proportional to 256,924.80, 354,699.08 and 154,975.96
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Solution
The fourth proportional to 256,924.80, 354,699.08 and 154,975.96 is: 213,952.99
Step by Step Solution
- Step 1: Write the proportion equation
256,924.80 : 354,699.08 = 154,975.96 : x - Step 2: Convert to fraction form
256,924.80/354,699.08 = 154,975.96/x - Step 3: Cross multiply
256,924.80x = 354,699.08 × 154,975.96 - Step 4: Simplify right side
256,924.80x = 54,969,830,434.12 - Step 5: Solve for x
x = 54,969,830,434.12/256,924.80 - Step 6: Final answer
x = 213,952.99
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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.