Finding the Fourth Proportional to 180,881.02, 249,616.38 and 100,315.99
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Solution
The fourth proportional to 180,881.02, 249,616.38 and 100,315.99 is: 138,436.38
Step by Step Solution
- Step 1: Write the proportion equation
180,881.02 : 249,616.38 = 100,315.99 : x - Step 2: Convert to fraction form
180,881.02/249,616.38 = 100,315.99/x - Step 3: Cross multiply
180,881.02x = 249,616.38 × 100,315.99 - Step 4: Simplify right side
180,881.02x = 25,040,514,279.92 - Step 5: Solve for x
x = 25,040,514,279.92/180,881.02 - Step 6: Final answer
x = 138,436.38
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1.5x scale
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.