Finding the Fourth Proportional to 405,887.58, 608,660.15 and 121,618.53
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Solution
The fourth proportional to 405,887.58, 608,660.15 and 121,618.53 is: 182,376.49
Step by Step Solution
- Step 1: Write the proportion equation
405,887.58 : 608,660.15 = 121,618.53 : x - Step 2: Convert to fraction form
405,887.58/608,660.15 = 121,618.53/x - Step 3: Cross multiply
405,887.58x = 608,660.15 × 121,618.53 - Step 4: Simplify right side
405,887.58x = 74,024,352,104.49 - Step 5: Solve for x
x = 74,024,352,104.49/405,887.58 - Step 6: Final answer
x = 182,376.49
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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.