Finding the Fourth Proportional to 612,814.97, 919,370.12 and 192,090.84
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Solution
The fourth proportional to 612,814.97, 919,370.12 and 192,090.84 is: 288,182.55
Step by Step Solution
- Step 1: Write the proportion equation
612,814.97 : 919,370.12 = 192,090.84 : x - Step 2: Convert to fraction form
612,814.97/919,370.12 = 192,090.84/x - Step 3: Cross multiply
612,814.97x = 919,370.12 × 192,090.84 - Step 4: Simplify right side
612,814.97x = 176,602,578,621.70 - Step 5: Solve for x
x = 176,602,578,621.70/612,814.97 - Step 6: Final answer
x = 288,182.55
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1.5x scale
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.