Finding the Fourth Proportional to 282,316.08, 389,578.50 and 154,980.84
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Solution
The fourth proportional to 282,316.08, 389,578.50 and 154,980.84 is: 213,863.85
Step by Step Solution
- Step 1: Write the proportion equation
282,316.08 : 389,578.50 = 154,980.84 : x - Step 2: Convert to fraction form
282,316.08/389,578.50 = 154,980.84/x - Step 3: Cross multiply
282,316.08x = 389,578.50 × 154,980.84 - Step 4: Simplify right side
282,316.08x = 60,377,203,175.94 - Step 5: Solve for x
x = 60,377,203,175.94/282,316.08 - Step 6: Final answer
x = 213,863.85
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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.