Finding the Fourth Proportional to 310,056.42, 427,924.62 and 189,267.96
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Solution
The fourth proportional to 310,056.42, 427,924.62 and 189,267.96 is: 261,218.33
Step by Step Solution
- Step 1: Write the proportion equation
310,056.42 : 427,924.62 = 189,267.96 : x - Step 2: Convert to fraction form
310,056.42/427,924.62 = 189,267.96/x - Step 3: Cross multiply
310,056.42x = 427,924.62 × 189,267.96 - Step 4: Simplify right side
310,056.42x = 80,992,419,861.18 - Step 5: Solve for x
x = 80,992,419,861.18/310,056.42 - Step 6: Final answer
x = 261,218.33
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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.