Finding the Fourth Proportional to 151,432.21, 208,977.83 and 83,451.62
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Solution
The fourth proportional to 151,432.21, 208,977.83 and 83,451.62 is: 115,164.00
Step by Step Solution
- Step 1: Write the proportion equation
151,432.21 : 208,977.83 = 83,451.62 : x - Step 2: Convert to fraction form
151,432.21/208,977.83 = 83,451.62/x - Step 3: Cross multiply
151,432.21x = 208,977.83 × 83,451.62 - Step 4: Simplify right side
151,432.21x = 17,439,538,457.58 - Step 5: Solve for x
x = 17,439,538,457.58/151,432.21 - Step 6: Final answer
x = 115,164.00
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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.