Finding the Fourth Proportional to 249,998.23, 345,042.39 and 141,135.67
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Solution
The fourth proportional to 249,998.23, 345,042.39 and 141,135.67 is: 194,792.53
Step by Step Solution
- Step 1: Write the proportion equation
249,998.23 : 345,042.39 = 141,135.67 : x - Step 2: Convert to fraction form
249,998.23/345,042.39 = 141,135.67/x - Step 3: Cross multiply
249,998.23x = 345,042.39 × 141,135.67 - Step 4: Simplify right side
249,998.23x = 48,697,788,891.05 - Step 5: Solve for x
x = 48,697,788,891.05/249,998.23 - Step 6: Final answer
x = 194,792.53
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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.