Finding the Fourth Proportional to 257,812.96, 386,261.68 and 107,722.84
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Solution
The fourth proportional to 257,812.96, 386,261.68 and 107,722.84 is: 161,392.99
Step by Step Solution
- Step 1: Write the proportion equation
257,812.96 : 386,261.68 = 107,722.84 : x - Step 2: Convert to fraction form
257,812.96/386,261.68 = 107,722.84/x - Step 3: Cross multiply
257,812.96x = 386,261.68 × 107,722.84 - Step 4: Simplify right side
257,812.96x = 41,609,205,152.77 - Step 5: Solve for x
x = 41,609,205,152.77/257,812.96 - Step 6: Final answer
x = 161,392.99
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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.