Finding the Fourth Proportional to 358,742.80, 538,114.20 and 201,278.80
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Solution
The fourth proportional to 358,742.80, 538,114.20 and 201,278.80 is: 301,918.20
Step by Step Solution
- Step 1: Write the proportion equation
358,742.80 : 538,114.20 = 201,278.80 : x - Step 2: Convert to fraction form
358,742.80/538,114.20 = 201,278.80/x - Step 3: Cross multiply
358,742.80x = 538,114.20 × 201,278.80 - Step 4: Simplify right side
358,742.80x = 108,310,980,438.96 - Step 5: Solve for x
x = 108,310,980,438.96/358,742.80 - Step 6: Final answer
x = 301,918.20
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.