Finding the Fourth Proportional to 155,365.28, 214,282.62 and 100,934.99
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Solution
The fourth proportional to 155,365.28, 214,282.62 and 100,934.99 is: 139,211.37
Step by Step Solution
- Step 1: Write the proportion equation
155,365.28 : 214,282.62 = 100,934.99 : x - Step 2: Convert to fraction form
155,365.28/214,282.62 = 100,934.99/x - Step 3: Cross multiply
155,365.28x = 214,282.62 × 100,934.99 - Step 4: Simplify right side
155,365.28x = 21,628,613,839.02 - Step 5: Solve for x
x = 21,628,613,839.02/155,365.28 - Step 6: Final answer
x = 139,211.37
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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.