Finding the Fourth Proportional to 274,828.64, 379,177.44 and 153,953.60
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Solution
The fourth proportional to 274,828.64, 379,177.44 and 153,953.60 is: 212,407.75
Step by Step Solution
- Step 1: Write the proportion equation
274,828.64 : 379,177.44 = 153,953.60 : x - Step 2: Convert to fraction form
274,828.64/379,177.44 = 153,953.60/x - Step 3: Cross multiply
274,828.64x = 379,177.44 × 153,953.60 - Step 4: Simplify right side
274,828.64x = 58,375,731,926.78 - Step 5: Solve for x
x = 58,375,731,926.78/274,828.64 - Step 6: Final answer
x = 212,407.75
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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.