Finding the Fourth Proportional to 399,144.12, 598,197.78 and 162,211.08
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Solution
The fourth proportional to 399,144.12, 598,197.78 and 162,211.08 is: 243,105.94
Step by Step Solution
- Step 1: Write the proportion equation
399,144.12 : 598,197.78 = 162,211.08 : x - Step 2: Convert to fraction form
399,144.12/598,197.78 = 162,211.08/x - Step 3: Cross multiply
399,144.12x = 598,197.78 × 162,211.08 - Step 4: Simplify right side
399,144.12x = 97,034,307,947.40 - Step 5: Solve for x
x = 97,034,307,947.40/399,144.12 - Step 6: Final answer
x = 243,105.94
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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.