Finding the Fourth Proportional to 426,833.09, 640,319.12 and 199,356.19
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Solution
The fourth proportional to 426,833.09, 640,319.12 and 199,356.19 is: 299,066.74
Step by Step Solution
- Step 1: Write the proportion equation
426,833.09 : 640,319.12 = 199,356.19 : x - Step 2: Convert to fraction form
426,833.09/640,319.12 = 199,356.19/x - Step 3: Cross multiply
426,833.09x = 640,319.12 × 199,356.19 - Step 4: Simplify right side
426,833.09x = 127,651,578,297.36 - Step 5: Solve for x
x = 127,651,578,297.36/426,833.09 - Step 6: Final answer
x = 299,066.74
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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.