Finding the Fourth Proportional to 282,102.97, 389,302.47 and 154,779.07
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Solution
The fourth proportional to 282,102.97, 389,302.47 and 154,779.07 is: 213,595.32
Step by Step Solution
- Step 1: Write the proportion equation
282,102.97 : 389,302.47 = 154,779.07 : x - Step 2: Convert to fraction form
282,102.97/389,302.47 = 154,779.07/x - Step 3: Cross multiply
282,102.97x = 389,302.47 × 154,779.07 - Step 4: Simplify right side
282,102.97x = 60,255,874,255.30 - Step 5: Solve for x
x = 60,255,874,255.30/282,102.97 - Step 6: Final answer
x = 213,595.32
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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.