Finding the Fourth Proportional to 398,659.88, 598,149.06 and 162,021.08
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Solution
The fourth proportional to 398,659.88, 598,149.06 and 162,021.08 is: 243,096.34
Step by Step Solution
- Step 1: Write the proportion equation
398,659.88 : 598,149.06 = 162,021.08 : x - Step 2: Convert to fraction form
398,659.88/598,149.06 = 162,021.08/x - Step 3: Cross multiply
398,659.88x = 598,149.06 × 162,021.08 - Step 4: Simplify right side
398,659.88x = 96,912,756,702.18 - Step 5: Solve for x
x = 96,912,756,702.18/398,659.88 - Step 6: Final answer
x = 243,096.34
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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.