Finding the Fourth Proportional to 180,736.05, 249,415.74 and 100,175.68
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Solution
The fourth proportional to 180,736.05, 249,415.74 and 100,175.68 is: 138,242.43
Step by Step Solution
- Step 1: Write the proportion equation
180,736.05 : 249,415.74 = 100,175.68 : x - Step 2: Convert to fraction form
180,736.05/249,415.74 = 100,175.68/x - Step 3: Cross multiply
180,736.05x = 249,415.74 × 100,175.68 - Step 4: Simplify right side
180,736.05x = 24,985,391,357.20 - Step 5: Solve for x
x = 24,985,391,357.20/180,736.05 - Step 6: Final answer
x = 138,242.43
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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.