Finding the Fourth Proportional to 291,188.64, 436,785.36 and 91,504.56
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Solution
The fourth proportional to 291,188.64, 436,785.36 and 91,504.56 is: 137,257.59
Step by Step Solution
- Step 1: Write the proportion equation
291,188.64 : 436,785.36 = 91,504.56 : x - Step 2: Convert to fraction form
291,188.64/436,785.36 = 91,504.56/x - Step 3: Cross multiply
291,188.64x = 436,785.36 × 91,504.56 - Step 4: Simplify right side
291,188.64x = 39,967,852,181.24 - Step 5: Solve for x
x = 39,967,852,181.24/291,188.64 - Step 6: Final answer
x = 137,257.59
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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.