Finding the Fourth Proportional to 401,129.13, 553,546.40 and 219,837.09
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Solution
The fourth proportional to 401,129.13, 553,546.40 and 219,837.09 is: 303,368.71
Step by Step Solution
- Step 1: Write the proportion equation
401,129.13 : 553,546.40 = 219,837.09 : x - Step 2: Convert to fraction form
401,129.13/553,546.40 = 219,837.09/x - Step 3: Cross multiply
401,129.13x = 553,546.40 × 219,837.09 - Step 4: Simplify right side
401,129.13x = 121,690,028,656.79 - Step 5: Solve for x
x = 121,690,028,656.79/401,129.13 - Step 6: Final answer
x = 303,368.71
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.