Finding the Fourth Proportional to 180,952.10, 249,722.09 and 100,379.68
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Solution
The fourth proportional to 180,952.10, 249,722.09 and 100,379.68 is: 138,528.49
Step by Step Solution
- Step 1: Write the proportion equation
180,952.10 : 249,722.09 = 100,379.68 : x - Step 2: Convert to fraction form
180,952.10/249,722.09 = 100,379.68/x - Step 3: Cross multiply
180,952.10x = 249,722.09 × 100,379.68 - Step 4: Simplify right side
180,952.10x = 25,067,021,732.62 - Step 5: Solve for x
x = 25,067,021,732.62/180,952.10 - Step 6: Final answer
x = 138,528.49
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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.