Finding the Fourth Proportional to 387,091.47, 534,228.12 and 234,213.99
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Solution
The fourth proportional to 387,091.47, 534,228.12 and 234,213.99 is: 323,240.65
Step by Step Solution
- Step 1: Write the proportion equation
387,091.47 : 534,228.12 = 234,213.99 : x - Step 2: Convert to fraction form
387,091.47/534,228.12 = 234,213.99/x - Step 3: Cross multiply
387,091.47x = 534,228.12 × 234,213.99 - Step 4: Simplify right side
387,091.47x = 125,123,699,555.40 - Step 5: Solve for x
x = 125,123,699,555.40/387,091.47 - Step 6: Final answer
x = 323,240.65
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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.