Finding the Fourth Proportional to 373,381.08, 515,115.34 and 216,113.53
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Solution
The fourth proportional to 373,381.08, 515,115.34 and 216,113.53 is: 298,149.53
Step by Step Solution
- Step 1: Write the proportion equation
373,381.08 : 515,115.34 = 216,113.53 : x - Step 2: Convert to fraction form
373,381.08/515,115.34 = 216,113.53/x - Step 3: Cross multiply
373,381.08x = 515,115.34 × 216,113.53 - Step 4: Simplify right side
373,381.08x = 111,323,394,484.55 - Step 5: Solve for x
x = 111,323,394,484.55/373,381.08 - Step 6: Final answer
x = 298,149.53
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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.