Finding the Fourth Proportional to 354,671.84, 531,406.32 and 214,135.28
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Solution
The fourth proportional to 354,671.84, 531,406.32 and 214,135.28 is: 320,839.80
Step by Step Solution
- Step 1: Write the proportion equation
354,671.84 : 531,406.32 = 214,135.28 : x - Step 2: Convert to fraction form
354,671.84/531,406.32 = 214,135.28/x - Step 3: Cross multiply
354,671.84x = 531,406.32 × 214,135.28 - Step 4: Simplify right side
354,671.84x = 113,792,841,126.97 - Step 5: Solve for x
x = 113,792,841,126.97/354,671.84 - Step 6: Final answer
x = 320,839.80
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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.