Finding the Fourth Proportional to 298,129.44, 411,381.20 and 201,543.40
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Solution
The fourth proportional to 298,129.44, 411,381.20 and 201,543.40 is: 278,104.59
Step by Step Solution
- Step 1: Write the proportion equation
298,129.44 : 411,381.20 = 201,543.40 : x - Step 2: Convert to fraction form
298,129.44/411,381.20 = 201,543.40/x - Step 3: Cross multiply
298,129.44x = 411,381.20 × 201,543.40 - Step 4: Simplify right side
298,129.44x = 82,911,165,744.08 - Step 5: Solve for x
x = 82,911,165,744.08/298,129.44 - Step 6: Final answer
x = 278,104.59
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.