Finding the Fourth Proportional to 219,276.19, 302,609.84 and 123,786.19
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Solution
The fourth proportional to 219,276.19, 302,609.84 and 123,786.19 is: 170,829.85
Step by Step Solution
- Step 1: Write the proportion equation
219,276.19 : 302,609.84 = 123,786.19 : x - Step 2: Convert to fraction form
219,276.19/302,609.84 = 123,786.19/x - Step 3: Cross multiply
219,276.19x = 302,609.84 × 123,786.19 - Step 4: Simplify right side
219,276.19x = 37,458,919,150.11 - Step 5: Solve for x
x = 37,458,919,150.11/219,276.19 - Step 6: Final answer
x = 170,829.85
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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.