Finding the Fourth Proportional to 235,130.81, 352,694.33 and 139,729.19
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Solution
The fourth proportional to 235,130.81, 352,694.33 and 139,729.19 is: 209,592.66
Step by Step Solution
- Step 1: Write the proportion equation
235,130.81 : 352,694.33 = 139,729.19 : x - Step 2: Convert to fraction form
235,130.81/352,694.33 = 139,729.19/x - Step 3: Cross multiply
235,130.81x = 352,694.33 × 139,729.19 - Step 4: Simplify right side
235,130.81x = 49,281,693,048.49 - Step 5: Solve for x
x = 49,281,693,048.49/235,130.81 - Step 6: Final answer
x = 209,592.66
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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.