Finding the Fourth Proportional to 257,830.95, 386,350.84 and 107,989.26
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Solution
The fourth proportional to 257,830.95, 386,350.84 and 107,989.26 is: 161,818.20
Step by Step Solution
- Step 1: Write the proportion equation
257,830.95 : 386,350.84 = 107,989.26 : x - Step 2: Convert to fraction form
257,830.95/386,350.84 = 107,989.26/x - Step 3: Cross multiply
257,830.95x = 386,350.84 × 107,989.26 - Step 4: Simplify right side
257,830.95x = 41,721,741,311.98 - Step 5: Solve for x
x = 41,721,741,311.98/257,830.95 - Step 6: Final answer
x = 161,818.20
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.