Finding the Fourth Proportional to 398,315.08, 597,439.86 and 131,988.52
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Solution
The fourth proportional to 398,315.08, 597,439.86 and 131,988.52 is: 197,971.92
Step by Step Solution
- Step 1: Write the proportion equation
398,315.08 : 597,439.86 = 131,988.52 : x - Step 2: Convert to fraction form
398,315.08/597,439.86 = 131,988.52/x - Step 3: Cross multiply
398,315.08x = 597,439.86 × 131,988.52 - Step 4: Simplify right side
398,315.08x = 78,855,202,910.41 - Step 5: Solve for x
x = 78,855,202,910.41/398,315.08 - Step 6: Final answer
x = 197,971.92
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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.