Finding the Fourth Proportional to 268,005.92, 402,078.58 and 99,574.79
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Solution
The fourth proportional to 268,005.92, 402,078.58 and 99,574.79 is: 149,388.09
Step by Step Solution
- Step 1: Write the proportion equation
268,005.92 : 402,078.58 = 99,574.79 : x - Step 2: Convert to fraction form
268,005.92/402,078.58 = 99,574.79/x - Step 3: Cross multiply
268,005.92x = 402,078.58 × 99,574.79 - Step 4: Simplify right side
268,005.92x = 40,036,891,860.31 - Step 5: Solve for x
x = 40,036,891,860.31/268,005.92 - Step 6: Final answer
x = 149,388.09
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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.