Finding the Fourth Proportional to 315,871.68, 473,737.94 and 91,183.32
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Solution
The fourth proportional to 315,871.68, 473,737.94 and 91,183.32 is: 136,754.89
Step by Step Solution
- Step 1: Write the proportion equation
315,871.68 : 473,737.94 = 91,183.32 : x - Step 2: Convert to fraction form
315,871.68/473,737.94 = 91,183.32/x - Step 3: Cross multiply
315,871.68x = 473,737.94 × 91,183.32 - Step 4: Simplify right side
315,871.68x = 43,196,998,179.16 - Step 5: Solve for x
x = 43,196,998,179.16/315,871.68 - Step 6: Final answer
x = 136,754.89
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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.