Finding the Fourth Proportional to 438,179.80, 657,269.70 and 290,435.80
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Solution
The fourth proportional to 438,179.80, 657,269.70 and 290,435.80 is: 435,653.70
Step by Step Solution
- Step 1: Write the proportion equation
438,179.80 : 657,269.70 = 290,435.80 : x - Step 2: Convert to fraction form
438,179.80/657,269.70 = 290,435.80/x - Step 3: Cross multiply
438,179.80x = 657,269.70 × 290,435.80 - Step 4: Simplify right side
438,179.80x = 190,894,651,135.26 - Step 5: Solve for x
x = 190,894,651,135.26/438,179.80 - Step 6: Final answer
x = 435,653.70
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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.