Finding the Fourth Proportional to 251,652.12, 347,279.94 and 138,474.88
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Solution
The fourth proportional to 251,652.12, 347,279.94 and 138,474.88 is: 191,095.34
Step by Step Solution
- Step 1: Write the proportion equation
251,652.12 : 347,279.94 = 138,474.88 : x - Step 2: Convert to fraction form
251,652.12/347,279.94 = 138,474.88/x - Step 3: Cross multiply
251,652.12x = 347,279.94 × 138,474.88 - Step 4: Simplify right side
251,652.12x = 48,089,548,017.91 - Step 5: Solve for x
x = 48,089,548,017.91/251,652.12 - Step 6: Final answer
x = 191,095.34
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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.