Finding the Fourth Proportional to 311,515.20, 467,272.80 and 232,783.20
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Solution
The fourth proportional to 311,515.20, 467,272.80 and 232,783.20 is: 349,174.80
Step by Step Solution
- Step 1: Write the proportion equation
311,515.20 : 467,272.80 = 232,783.20 : x - Step 2: Convert to fraction form
311,515.20/467,272.80 = 232,783.20/x - Step 3: Cross multiply
311,515.20x = 467,272.80 × 232,783.20 - Step 4: Simplify right side
311,515.20x = 108,773,257,656.96 - Step 5: Solve for x
x = 108,773,257,656.96/311,515.20 - Step 6: Final answer
x = 349,174.80
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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.