Finding the Fourth Proportional to 426,031.92, 638,960.40 and 201,296.88
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Solution
The fourth proportional to 426,031.92, 638,960.40 and 201,296.88 is: 301,903.99
Step by Step Solution
- Step 1: Write the proportion equation
426,031.92 : 638,960.40 = 201,296.88 : x - Step 2: Convert to fraction form
426,031.92/638,960.40 = 201,296.88/x - Step 3: Cross multiply
426,031.92x = 638,960.40 × 201,296.88 - Step 4: Simplify right side
426,031.92x = 128,620,734,963.55 - Step 5: Solve for x
x = 128,620,734,963.55/426,031.92 - Step 6: Final answer
x = 301,903.99
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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.