Finding the Fourth Proportional to 438,473.87, 657,729.09 and 138,947.82
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Solution
The fourth proportional to 438,473.87, 657,729.09 and 138,947.82 is: 208,427.53
Step by Step Solution
- Step 1: Write the proportion equation
438,473.87 : 657,729.09 = 138,947.82 : x - Step 2: Convert to fraction form
438,473.87/657,729.09 = 138,947.82/x - Step 3: Cross multiply
438,473.87x = 657,729.09 × 138,947.82 - Step 4: Simplify right side
438,473.87x = 91,390,023,206.08 - Step 5: Solve for x
x = 91,390,023,206.08/438,473.87 - Step 6: Final answer
x = 208,427.53
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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.