Finding the Fourth Proportional to 291,168.45, 436,604.99 and 133,261.65
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Solution
The fourth proportional to 291,168.45, 436,604.99 and 133,261.65 is: 199,824.88
Step by Step Solution
- Step 1: Write the proportion equation
291,168.45 : 436,604.99 = 133,261.65 : x - Step 2: Convert to fraction form
291,168.45/436,604.99 = 133,261.65/x - Step 3: Cross multiply
291,168.45x = 436,604.99 × 133,261.65 - Step 4: Simplify right side
291,168.45x = 58,182,700,699.33 - Step 5: Solve for x
x = 58,182,700,699.33/291,168.45 - Step 6: Final answer
x = 199,824.88
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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.