Finding the Fourth Proportional to 145,331.41, 217,994.96 and 40,148.05
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Solution
The fourth proportional to 145,331.41, 217,994.96 and 40,148.05 is: 60,221.48
Step by Step Solution
- Step 1: Write the proportion equation
145,331.41 : 217,994.96 = 40,148.05 : x - Step 2: Convert to fraction form
145,331.41/217,994.96 = 40,148.05/x - Step 3: Cross multiply
145,331.41x = 217,994.96 × 40,148.05 - Step 4: Simplify right side
145,331.41x = 8,752,072,353.09 - Step 5: Solve for x
x = 8,752,072,353.09/145,331.41 - Step 6: Final answer
x = 60,221.48
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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.