Finding the Fourth Proportional to 405,671.14, 608,351.01 and 139,382.02
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Solution
The fourth proportional to 405,671.14, 608,351.01 and 139,382.02 is: 209,019.53
Step by Step Solution
- Step 1: Write the proportion equation
405,671.14 : 608,351.01 = 139,382.02 : x - Step 2: Convert to fraction form
405,671.14/608,351.01 = 139,382.02/x - Step 3: Cross multiply
405,671.14x = 608,351.01 × 139,382.02 - Step 4: Simplify right side
405,671.14x = 84,793,192,642.84 - Step 5: Solve for x
x = 84,793,192,642.84/405,671.14 - Step 6: Final answer
x = 209,019.53
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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.