Finding the Fourth Proportional to 251,685.23, 347,325.50 and 138,507.98
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Solution
The fourth proportional to 251,685.23, 347,325.50 and 138,507.98 is: 191,140.95
Step by Step Solution
- Step 1: Write the proportion equation
251,685.23 : 347,325.50 = 138,507.98 : x - Step 2: Convert to fraction form
251,685.23/347,325.50 = 138,507.98/x - Step 3: Cross multiply
251,685.23x = 347,325.50 × 138,507.98 - Step 4: Simplify right side
251,685.23x = 48,107,352,017.13 - Step 5: Solve for x
x = 48,107,352,017.13/251,685.23 - Step 6: Final answer
x = 191,140.95
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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.