Finding the Fourth Proportional to 316,828.26, 437,611.41 and 256,467.06
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Solution
The fourth proportional to 316,828.26, 437,611.41 and 256,467.06 is: 354,238.96
Step by Step Solution
- Step 1: Write the proportion equation
316,828.26 : 437,611.41 = 256,467.06 : x - Step 2: Convert to fraction form
316,828.26/437,611.41 = 256,467.06/x - Step 3: Cross multiply
316,828.26x = 437,611.41 × 256,467.06 - Step 4: Simplify right side
316,828.26x = 112,232,911,745.16 - Step 5: Solve for x
x = 112,232,911,745.16/316,828.26 - Step 6: Final answer
x = 354,238.96
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.