Finding the Fourth Proportional to 257,238.46, 385,857.84 and 107,397.06
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Solution
The fourth proportional to 257,238.46, 385,857.84 and 107,397.06 is: 161,095.65
Step by Step Solution
- Step 1: Write the proportion equation
257,238.46 : 385,857.84 = 107,397.06 : x - Step 2: Convert to fraction form
257,238.46/385,857.84 = 107,397.06/x - Step 3: Cross multiply
257,238.46x = 385,857.84 × 107,397.06 - Step 4: Simplify right side
257,238.46x = 41,439,997,056.97 - Step 5: Solve for x
x = 41,439,997,056.97/257,238.46 - Step 6: Final answer
x = 161,095.65
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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.