Finding the Fourth Proportional to 351,504.18, 485,124.06 and 215,514.09
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Solution
The fourth proportional to 351,504.18, 485,124.06 and 215,514.09 is: 297,439.05
Step by Step Solution
- Step 1: Write the proportion equation
351,504.18 : 485,124.06 = 215,514.09 : x - Step 2: Convert to fraction form
351,504.18/485,124.06 = 215,514.09/x - Step 3: Cross multiply
351,504.18x = 485,124.06 × 215,514.09 - Step 4: Simplify right side
351,504.18x = 104,551,070,328.01 - Step 5: Solve for x
x = 104,551,070,328.01/351,504.18 - Step 6: Final answer
x = 297,439.05
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1.5x scale
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.