Finding the Fourth Proportional to 300,479.08, 450,689.28 and 78,863.08
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Solution
The fourth proportional to 300,479.08, 450,689.28 and 78,863.08 is: 118,286.92
Step by Step Solution
- Step 1: Write the proportion equation
300,479.08 : 450,689.28 = 78,863.08 : x - Step 2: Convert to fraction form
300,479.08/450,689.28 = 78,863.08/x - Step 3: Cross multiply
300,479.08x = 450,689.28 × 78,863.08 - Step 4: Simplify right side
300,479.08x = 35,542,744,743.78 - Step 5: Solve for x
x = 35,542,744,743.78/300,479.08 - Step 6: Final answer
x = 118,286.92
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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.