Finding the Fourth Proportional to 180,771.36, 249,479.40 and 100,224.12
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Solution
The fourth proportional to 180,771.36, 249,479.40 and 100,224.12 is: 138,317.56
Step by Step Solution
- Step 1: Write the proportion equation
180,771.36 : 249,479.40 = 100,224.12 : x - Step 2: Convert to fraction form
180,771.36/249,479.40 = 100,224.12/x - Step 3: Cross multiply
180,771.36x = 249,479.40 × 100,224.12 - Step 4: Simplify right side
180,771.36x = 25,003,853,323.13 - Step 5: Solve for x
x = 25,003,853,323.13/180,771.36 - Step 6: Final answer
x = 138,317.56
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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.