Finding the Fourth Proportional to 251,677.19, 347,314.58 and 138,499.94
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Solution
The fourth proportional to 251,677.19, 347,314.58 and 138,499.94 is: 191,129.95
Step by Step Solution
- Step 1: Write the proportion equation
251,677.19 : 347,314.58 = 138,499.94 : x - Step 2: Convert to fraction form
251,677.19/347,314.58 = 138,499.94/x - Step 3: Cross multiply
251,677.19x = 347,314.58 × 138,499.94 - Step 4: Simplify right side
251,677.19x = 48,103,047,798.63 - Step 5: Solve for x
x = 48,103,047,798.63/251,677.19 - Step 6: Final answer
x = 191,129.95
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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.