Finding the Fourth Proportional to 228,154.97, 340,561.36 and 201,221.21
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Solution
The fourth proportional to 228,154.97, 340,561.36 and 201,221.21 is: 300,357.99
Step by Step Solution
- Step 1: Write the proportion equation
228,154.97 : 340,561.36 = 201,221.21 : x - Step 2: Convert to fraction form
228,154.97/340,561.36 = 201,221.21/x - Step 3: Cross multiply
228,154.97x = 340,561.36 × 201,221.21 - Step 4: Simplify right side
228,154.97x = 68,528,168,938.45 - Step 5: Solve for x
x = 68,528,168,938.45/228,154.97 - Step 6: Final answer
x = 300,357.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.