Finding the Fourth Proportional to 286,522.49, 395,401.12 and 159,198.09
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Solution
The fourth proportional to 286,522.49, 395,401.12 and 159,198.09 is: 219,693.40
Step by Step Solution
- Step 1: Write the proportion equation
286,522.49 : 395,401.12 = 159,198.09 : x - Step 2: Convert to fraction form
286,522.49/395,401.12 = 159,198.09/x - Step 3: Cross multiply
286,522.49x = 395,401.12 × 159,198.09 - Step 4: Simplify right side
286,522.49x = 62,947,101,110.86 - Step 5: Solve for x
x = 62,947,101,110.86/286,522.49 - Step 6: Final answer
x = 219,693.40
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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.