Finding the Fourth Proportional to 256,415.40, 353,651.49 and 239,226.75
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Solution
The fourth proportional to 256,415.40, 353,651.49 and 239,226.75 is: 329,944.68
Step by Step Solution
- Step 1: Write the proportion equation
256,415.40 : 353,651.49 = 239,226.75 : x - Step 2: Convert to fraction form
256,415.40/353,651.49 = 239,226.75/x - Step 3: Cross multiply
256,415.40x = 353,651.49 × 239,226.75 - Step 4: Simplify right side
256,415.40x = 84,602,896,585.36 - Step 5: Solve for x
x = 84,602,896,585.36/256,415.40 - Step 6: Final answer
x = 329,944.68
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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.