Finding the Fourth Proportional to 250,214.12, 345,303.78 and 137,043.08
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Solution
The fourth proportional to 250,214.12, 345,303.78 and 137,043.08 is: 189,123.99
Step by Step Solution
- Step 1: Write the proportion equation
250,214.12 : 345,303.78 = 137,043.08 : x - Step 2: Convert to fraction form
250,214.12/345,303.78 = 137,043.08/x - Step 3: Cross multiply
250,214.12x = 345,303.78 × 137,043.08 - Step 4: Simplify right side
250,214.12x = 47,321,493,546.84 - Step 5: Solve for x
x = 47,321,493,546.84/250,214.12 - Step 6: Final answer
x = 189,123.99
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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.