Finding the Fourth Proportional to 486,197.49, 670,989.65 and 268,448.16
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Solution
The fourth proportional to 486,197.49, 670,989.65 and 268,448.16 is: 370,478.95
Step by Step Solution
- Step 1: Write the proportion equation
486,197.49 : 670,989.65 = 268,448.16 : x - Step 2: Convert to fraction form
486,197.49/670,989.65 = 268,448.16/x - Step 3: Cross multiply
486,197.49x = 670,989.65 × 268,448.16 - Step 4: Simplify right side
486,197.49x = 180,125,936,921.54 - Step 5: Solve for x
x = 180,125,936,921.54/486,197.49 - Step 6: Final answer
x = 370,478.95
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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.