Finding the Fourth Proportional to 190,909.40, 263,337.18 and 122,903.96
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Solution
The fourth proportional to 190,909.40, 263,337.18 and 122,903.96 is: 169,531.63
Step by Step Solution
- Step 1: Write the proportion equation
190,909.40 : 263,337.18 = 122,903.96 : x - Step 2: Convert to fraction form
190,909.40/263,337.18 = 122,903.96/x - Step 3: Cross multiply
190,909.40x = 263,337.18 × 122,903.96 - Step 4: Simplify right side
190,909.40x = 32,365,182,237.23 - Step 5: Solve for x
x = 32,365,182,237.23/190,909.40 - Step 6: Final answer
x = 169,531.63
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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.