Finding the Fourth Proportional to 212,860.35, 293,789.85 and 122,278.44
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Solution
The fourth proportional to 212,860.35, 293,789.85 and 122,278.44 is: 168,768.70
Step by Step Solution
- Step 1: Write the proportion equation
212,860.35 : 293,789.85 = 122,278.44 : x - Step 2: Convert to fraction form
212,860.35/293,789.85 = 122,278.44/x - Step 3: Cross multiply
212,860.35x = 293,789.85 × 122,278.44 - Step 4: Simplify right side
212,860.35x = 35,924,164,545.83 - Step 5: Solve for x
x = 35,924,164,545.83/212,860.35 - Step 6: Final answer
x = 168,768.70
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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.