Finding the Fourth Proportional to 274,610.88, 378,929.76 and 153,742.68
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Solution
The fourth proportional to 274,610.88, 378,929.76 and 153,742.68 is: 212,146.28
Step by Step Solution
- Step 1: Write the proportion equation
274,610.88 : 378,929.76 = 153,742.68 : x - Step 2: Convert to fraction form
274,610.88/378,929.76 = 153,742.68/x - Step 3: Cross multiply
274,610.88x = 378,929.76 × 153,742.68 - Step 4: Simplify right side
274,610.88x = 58,257,676,834.16 - Step 5: Solve for x
x = 58,257,676,834.16/274,610.88 - Step 6: Final answer
x = 212,146.28
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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.