Finding the Fourth Proportional to 405,027.84, 606,876.09 and 138,643.04
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Solution
The fourth proportional to 405,027.84, 606,876.09 and 138,643.04 is: 207,736.70
Step by Step Solution
- Step 1: Write the proportion equation
405,027.84 : 606,876.09 = 138,643.04 : x - Step 2: Convert to fraction form
405,027.84/606,876.09 = 138,643.04/x - Step 3: Cross multiply
405,027.84x = 606,876.09 × 138,643.04 - Step 4: Simplify right side
405,027.84x = 84,139,147,538.10 - Step 5: Solve for x
x = 84,139,147,538.10/405,027.84 - Step 6: Final answer
x = 207,736.70
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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.