Finding the Fourth Proportional to 317,157.92, 437,254.52 and 251,963.06
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Solution
The fourth proportional to 317,157.92, 437,254.52 and 251,963.06 is: 347,372.65
Step by Step Solution
- Step 1: Write the proportion equation
317,157.92 : 437,254.52 = 251,963.06 : x - Step 2: Convert to fraction form
317,157.92/437,254.52 = 251,963.06/x - Step 3: Cross multiply
317,157.92x = 437,254.52 × 251,963.06 - Step 4: Simplify right side
317,157.92x = 110,171,986,858.03 - Step 5: Solve for x
x = 110,171,986,858.03/317,157.92 - Step 6: Final answer
x = 347,372.65
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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.