Finding the Fourth Proportional to 180,926.26, 249,708.14 and 100,379.74
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Solution
The fourth proportional to 180,926.26, 249,708.14 and 100,379.74 is: 138,540.63
Step by Step Solution
- Step 1: Write the proportion equation
180,926.26 : 249,708.14 = 100,379.74 : x - Step 2: Convert to fraction form
180,926.26/249,708.14 = 100,379.74/x - Step 3: Cross multiply
180,926.26x = 249,708.14 × 100,379.74 - Step 4: Simplify right side
180,926.26x = 25,065,638,169.08 - Step 5: Solve for x
x = 25,065,638,169.08/180,926.26 - Step 6: Final answer
x = 138,540.63
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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.