Finding the Fourth Proportional to 500,258.99, 690,356.66 and 270,815.15
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Solution
The fourth proportional to 500,258.99, 690,356.66 and 270,815.15 is: 373,724.50
Step by Step Solution
- Step 1: Write the proportion equation
500,258.99 : 690,356.66 = 270,815.15 : x - Step 2: Convert to fraction form
500,258.99/690,356.66 = 270,815.15/x - Step 3: Cross multiply
500,258.99x = 690,356.66 × 270,815.15 - Step 4: Simplify right side
500,258.99x = 186,959,042,431.40 - Step 5: Solve for x
x = 186,959,042,431.40/500,258.99 - Step 6: Final answer
x = 373,724.50
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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.