Finding the Fourth Proportional to 201,902.90, 302,854.35 and 138,917.30
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Solution
The fourth proportional to 201,902.90, 302,854.35 and 138,917.30 is: 208,375.95
Step by Step Solution
- Step 1: Write the proportion equation
201,902.90 : 302,854.35 = 138,917.30 : x - Step 2: Convert to fraction form
201,902.90/302,854.35 = 138,917.30/x - Step 3: Cross multiply
201,902.90x = 302,854.35 × 138,917.30 - Step 4: Simplify right side
201,902.90x = 42,071,708,595.26 - Step 5: Solve for x
x = 42,071,708,595.26/201,902.90 - Step 6: Final answer
x = 208,375.95
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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.