Finding the Fourth Proportional to 180,933.78, 249,718.49 and 100,387.26
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Solution
The fourth proportional to 180,933.78, 249,718.49 and 100,387.26 is: 138,550.99
Step by Step Solution
- Step 1: Write the proportion equation
180,933.78 : 249,718.49 = 100,387.26 : x - Step 2: Convert to fraction form
180,933.78/249,718.49 = 100,387.26/x - Step 3: Cross multiply
180,933.78x = 249,718.49 × 100,387.26 - Step 4: Simplify right side
180,933.78x = 25,068,554,982.44 - Step 5: Solve for x
x = 25,068,554,982.44/180,933.78 - Step 6: Final answer
x = 138,550.99
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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.