Finding the Fourth Proportional to 399,115.80, 598,673.70 and 185,883.30
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Solution
The fourth proportional to 399,115.80, 598,673.70 and 185,883.30 is: 278,824.95
Step by Step Solution
- Step 1: Write the proportion equation
399,115.80 : 598,673.70 = 185,883.30 : x - Step 2: Convert to fraction form
399,115.80/598,673.70 = 185,883.30/x - Step 3: Cross multiply
399,115.80x = 598,673.70 × 185,883.30 - Step 4: Simplify right side
399,115.80x = 111,283,442,979.21 - Step 5: Solve for x
x = 111,283,442,979.21/399,115.80 - Step 6: Final answer
x = 278,824.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.