Finding the Fourth Proportional to 149,505.81, 206,335.53 and 84,984.74
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Solution
The fourth proportional to 149,505.81, 206,335.53 and 84,984.74 is: 117,288.89
Step by Step Solution
- Step 1: Write the proportion equation
149,505.81 : 206,335.53 = 84,984.74 : x - Step 2: Convert to fraction form
149,505.81/206,335.53 = 84,984.74/x - Step 3: Cross multiply
149,505.81x = 206,335.53 × 84,984.74 - Step 4: Simplify right side
149,505.81x = 17,535,370,338.13 - Step 5: Solve for x
x = 17,535,370,338.13/149,505.81 - Step 6: Final answer
x = 117,288.89
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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.