Finding the Fourth Proportional to 448,219.68, 618,543.15 and 247,015.68
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Solution
The fourth proportional to 448,219.68, 618,543.15 and 247,015.68 is: 340,881.63
Step by Step Solution
- Step 1: Write the proportion equation
448,219.68 : 618,543.15 = 247,015.68 : x - Step 2: Convert to fraction form
448,219.68/618,543.15 = 247,015.68/x - Step 3: Cross multiply
448,219.68x = 618,543.15 × 247,015.68 - Step 4: Simplify right side
448,219.68x = 152,789,856,806.59 - Step 5: Solve for x
x = 152,789,856,806.59/448,219.68 - Step 6: Final answer
x = 340,881.63
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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.