Finding the Fourth Proportional to 279,125.60, 418,558.80 and 121,272.80
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Solution
The fourth proportional to 279,125.60, 418,558.80 and 121,272.80 is: 181,852.89
Step by Step Solution
- Step 1: Write the proportion equation
279,125.60 : 418,558.80 = 121,272.80 : x - Step 2: Convert to fraction form
279,125.60/418,558.80 = 121,272.80/x - Step 3: Cross multiply
279,125.60x = 418,558.80 × 121,272.80 - Step 4: Simplify right side
279,125.60x = 50,759,797,640.64 - Step 5: Solve for x
x = 50,759,797,640.64/279,125.60 - Step 6: Final answer
x = 181,852.89
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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.