Finding the Fourth Proportional to 211,765.55, 292,373.21 and 131,279.09
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Solution
The fourth proportional to 211,765.55, 292,373.21 and 131,279.09 is: 181,249.92
Step by Step Solution
- Step 1: Write the proportion equation
211,765.55 : 292,373.21 = 131,279.09 : x - Step 2: Convert to fraction form
211,765.55/292,373.21 = 131,279.09/x - Step 3: Cross multiply
211,765.55x = 292,373.21 × 131,279.09 - Step 4: Simplify right side
211,765.55x = 38,382,487,815.51 - Step 5: Solve for x
x = 38,382,487,815.51/211,765.55 - Step 6: Final answer
x = 181,249.92
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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.