Finding the Fourth Proportional to 340,809.84, 511,214.88 and 91,491.84
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Solution
The fourth proportional to 340,809.84, 511,214.88 and 91,491.84 is: 137,237.79
Step by Step Solution
- Step 1: Write the proportion equation
340,809.84 : 511,214.88 = 91,491.84 : x - Step 2: Convert to fraction form
340,809.84/511,214.88 = 91,491.84/x - Step 3: Cross multiply
340,809.84x = 511,214.88 × 91,491.84 - Step 4: Simplify right side
340,809.84x = 46,771,990,006.58 - Step 5: Solve for x
x = 46,771,990,006.58/340,809.84 - Step 6: Final answer
x = 137,237.79
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Similar ratio
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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.