Finding the Fourth Proportional to 253,036.44, 379,430.64 and 84,498.84
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Solution
The fourth proportional to 253,036.44, 379,430.64 and 84,498.84 is: 126,706.84
Step by Step Solution
- Step 1: Write the proportion equation
253,036.44 : 379,430.64 = 84,498.84 : x - Step 2: Convert to fraction form
253,036.44/379,430.64 = 84,498.84/x - Step 3: Cross multiply
253,036.44x = 379,430.64 × 84,498.84 - Step 4: Simplify right side
253,036.44x = 32,061,448,940.46 - Step 5: Solve for x
x = 32,061,448,940.46/253,036.44 - Step 6: Final answer
x = 126,706.84
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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.