Finding the Fourth Proportional to 207,789.63, 286,749.75 and 118,365.63
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Solution
The fourth proportional to 207,789.63, 286,749.75 and 118,365.63 is: 163,344.60
Step by Step Solution
- Step 1: Write the proportion equation
207,789.63 : 286,749.75 = 118,365.63 : x - Step 2: Convert to fraction form
207,789.63/286,749.75 = 118,365.63/x - Step 3: Cross multiply
207,789.63x = 286,749.75 × 118,365.63 - Step 4: Simplify right side
207,789.63x = 33,941,314,811.09 - Step 5: Solve for x
x = 33,941,314,811.09/207,789.63 - Step 6: Final answer
x = 163,344.60
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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.