Finding the Fourth Proportional to 207,924.80, 286,936.02 and 112,431.26
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Solution
The fourth proportional to 207,924.80, 286,936.02 and 112,431.26 is: 155,155.03
Step by Step Solution
- Step 1: Write the proportion equation
207,924.80 : 286,936.02 = 112,431.26 : x - Step 2: Convert to fraction form
207,924.80/286,936.02 = 112,431.26/x - Step 3: Cross multiply
207,924.80x = 286,936.02 × 112,431.26 - Step 4: Simplify right side
207,924.80x = 32,260,578,267.99 - Step 5: Solve for x
x = 32,260,578,267.99/207,924.80 - Step 6: Final answer
x = 155,155.03
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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.