Finding the Fourth Proportional to 211,763.30, 292,370.11 and 131,276.84
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Solution
The fourth proportional to 211,763.30, 292,370.11 and 131,276.84 is: 181,246.81
Step by Step Solution
- Step 1: Write the proportion equation
211,763.30 : 292,370.11 = 131,276.84 : x - Step 2: Convert to fraction form
211,763.30/292,370.11 = 131,276.84/x - Step 3: Cross multiply
211,763.30x = 292,370.11 × 131,276.84 - Step 4: Simplify right side
211,763.30x = 38,381,422,361.21 - Step 5: Solve for x
x = 38,381,422,361.21/211,763.30 - Step 6: Final answer
x = 181,246.81
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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.