Finding the Fourth Proportional to 352,718.71, 486,891.42 and 245,351.05
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Solution
The fourth proportional to 352,718.71, 486,891.42 and 245,351.05 is: 338,681.55
Step by Step Solution
- Step 1: Write the proportion equation
352,718.71 : 486,891.42 = 245,351.05 : x - Step 2: Convert to fraction form
352,718.71/486,891.42 = 245,351.05/x - Step 3: Cross multiply
352,718.71x = 486,891.42 × 245,351.05 - Step 4: Simplify right side
352,718.71x = 119,459,321,132.99 - Step 5: Solve for x
x = 119,459,321,132.99/352,718.71 - Step 6: Final answer
x = 338,681.55
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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.