Finding the Fourth Proportional to 274,877.76, 412,028.84 and 115,045.28
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Solution
The fourth proportional to 274,877.76, 412,028.84 and 115,045.28 is: 172,447.47
Step by Step Solution
- Step 1: Write the proportion equation
274,877.76 : 412,028.84 = 115,045.28 : x - Step 2: Convert to fraction form
274,877.76/412,028.84 = 115,045.28/x - Step 3: Cross multiply
274,877.76x = 412,028.84 × 115,045.28 - Step 4: Simplify right side
274,877.76x = 47,401,973,265.88 - Step 5: Solve for x
x = 47,401,973,265.88/274,877.76 - Step 6: Final answer
x = 172,447.47
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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.