Finding the Fourth Proportional to 316,901.21, 437,319.93 and 171,704.15
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Solution
The fourth proportional to 316,901.21, 437,319.93 and 171,704.15 is: 236,949.70
Step by Step Solution
- Step 1: Write the proportion equation
316,901.21 : 437,319.93 = 171,704.15 : x - Step 2: Convert to fraction form
316,901.21/437,319.93 = 171,704.15/x - Step 3: Cross multiply
316,901.21x = 437,319.93 × 171,704.15 - Step 4: Simplify right side
316,901.21x = 75,089,644,672.11 - Step 5: Solve for x
x = 75,089,644,672.11/316,901.21 - Step 6: Final answer
x = 236,949.70
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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.