Finding the Fourth Proportional to 448,207.97, 618,503.14 and 257,208.75
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Solution
The fourth proportional to 448,207.97, 618,503.14 and 257,208.75 is: 354,934.39
Step by Step Solution
- Step 1: Write the proportion equation
448,207.97 : 618,503.14 = 257,208.75 : x - Step 2: Convert to fraction form
448,207.97/618,503.14 = 257,208.75/x - Step 3: Cross multiply
448,207.97x = 618,503.14 × 257,208.75 - Step 4: Simplify right side
448,207.97x = 159,084,419,831.99 - Step 5: Solve for x
x = 159,084,419,831.99/448,207.97 - Step 6: Final answer
x = 354,934.39
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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.