Finding the Fourth Proportional to 438,947.51, 605,796.74 and 247,973.19
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Solution
The fourth proportional to 438,947.51, 605,796.74 and 247,973.19 is: 342,230.78
Step by Step Solution
- Step 1: Write the proportion equation
438,947.51 : 605,796.74 = 247,973.19 : x - Step 2: Convert to fraction form
438,947.51/605,796.74 = 247,973.19/x - Step 3: Cross multiply
438,947.51x = 605,796.74 × 247,973.19 - Step 4: Simplify right side
438,947.51x = 150,221,348,869.54 - Step 5: Solve for x
x = 150,221,348,869.54/438,947.51 - Step 6: Final answer
x = 342,230.78
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1.5x scale
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.