Finding the Fourth Proportional to 251,599.12, 347,212.08 and 138,422.08
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Solution
The fourth proportional to 251,599.12, 347,212.08 and 138,422.08 is: 191,025.38
Step by Step Solution
- Step 1: Write the proportion equation
251,599.12 : 347,212.08 = 138,422.08 : x - Step 2: Convert to fraction form
251,599.12/347,212.08 = 138,422.08/x - Step 3: Cross multiply
251,599.12x = 347,212.08 × 138,422.08 - Step 4: Simplify right side
251,599.12x = 48,061,818,314.73 - Step 5: Solve for x
x = 48,061,818,314.73/251,599.12 - Step 6: Final answer
x = 191,025.38
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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.