Finding the Fourth Proportional to 380,078.42, 524,486.49 and 210,302.42
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Solution
The fourth proportional to 380,078.42, 524,486.49 and 210,302.42 is: 290,205.32
Step by Step Solution
- Step 1: Write the proportion equation
380,078.42 : 524,486.49 = 210,302.42 : x - Step 2: Convert to fraction form
380,078.42/524,486.49 = 210,302.42/x - Step 3: Cross multiply
380,078.42x = 524,486.49 × 210,302.42 - Step 4: Simplify right side
380,078.42x = 110,300,778,104.31 - Step 5: Solve for x
x = 110,300,778,104.31/380,078.42 - Step 6: Final answer
x = 290,205.32
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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.