Finding the Fourth Proportional to 207,946.44, 286,964.64 and 112,451.76
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Solution
The fourth proportional to 207,946.44, 286,964.64 and 112,451.76 is: 155,182.65
Step by Step Solution
- Step 1: Write the proportion equation
207,946.44 : 286,964.64 = 112,451.76 : x - Step 2: Convert to fraction form
207,946.44/286,964.64 = 112,451.76/x - Step 3: Cross multiply
207,946.44x = 286,964.64 × 112,451.76 - Step 4: Simplify right side
207,946.44x = 32,269,678,825.77 - Step 5: Solve for x
x = 32,269,678,825.77/207,946.44 - Step 6: Final answer
x = 155,182.65
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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.