Finding the Fourth Proportional to 202,014.24, 278,780.20 and 121,487.88
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Solution
The fourth proportional to 202,014.24, 278,780.20 and 121,487.88 is: 167,653.60
Step by Step Solution
- Step 1: Write the proportion equation
202,014.24 : 278,780.20 = 121,487.88 : x - Step 2: Convert to fraction form
202,014.24/278,780.20 = 121,487.88/x - Step 3: Cross multiply
202,014.24x = 278,780.20 × 121,487.88 - Step 4: Simplify right side
202,014.24x = 33,868,415,483.98 - Step 5: Solve for x
x = 33,868,415,483.98/202,014.24 - Step 6: Final answer
x = 167,653.60
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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.