Finding the Fourth Proportional to 380,186.74, 524,684.28 and 210,431.80
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Solution
The fourth proportional to 380,186.74, 524,684.28 and 210,431.80 is: 290,410.60
Step by Step Solution
- Step 1: Write the proportion equation
380,186.74 : 524,684.28 = 210,431.80 : x - Step 2: Convert to fraction form
380,186.74/524,684.28 = 210,431.80/x - Step 3: Cross multiply
380,186.74x = 524,684.28 × 210,431.80 - Step 4: Simplify right side
380,186.74x = 110,410,257,472.10 - Step 5: Solve for x
x = 110,410,257,472.10/380,186.74 - Step 6: Final answer
x = 290,410.60
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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.