Finding the Fourth Proportional to 207,811.13, 286,773.62 and 117,166.31
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Solution
The fourth proportional to 207,811.13, 286,773.62 and 117,166.31 is: 161,686.26
Step by Step Solution
- Step 1: Write the proportion equation
207,811.13 : 286,773.62 = 117,166.31 : x - Step 2: Convert to fraction form
207,811.13/286,773.62 = 117,166.31/x - Step 3: Cross multiply
207,811.13x = 286,773.62 × 117,166.31 - Step 4: Simplify right side
207,811.13x = 33,600,204,841.04 - Step 5: Solve for x
x = 33,600,204,841.04/207,811.13 - Step 6: Final answer
x = 161,686.26
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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.