Finding the Fourth Proportional to 358,860.40, 538,031.40 and 201,137.20
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Solution
The fourth proportional to 358,860.40, 538,031.40 and 201,137.20 is: 301,560.52
Step by Step Solution
- Step 1: Write the proportion equation
358,860.40 : 538,031.40 = 201,137.20 : x - Step 2: Convert to fraction form
358,860.40/538,031.40 = 201,137.20/x - Step 3: Cross multiply
358,860.40x = 538,031.40 × 201,137.20 - Step 4: Simplify right side
358,860.40x = 108,218,129,308.08 - Step 5: Solve for x
x = 108,218,129,308.08/358,860.40 - Step 6: Final answer
x = 301,560.52
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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.