Finding the Fourth Proportional to 210,763.24, 290,863.92 and 124,771.57
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Solution
The fourth proportional to 210,763.24, 290,863.92 and 124,771.57 is: 172,191.07
Step by Step Solution
- Step 1: Write the proportion equation
210,763.24 : 290,863.92 = 124,771.57 : x - Step 2: Convert to fraction form
210,763.24/290,863.92 = 124,771.57/x - Step 3: Cross multiply
210,763.24x = 290,863.92 × 124,771.57 - Step 4: Simplify right side
210,763.24x = 36,291,547,954.75 - Step 5: Solve for x
x = 36,291,547,954.75/210,763.24 - Step 6: Final answer
x = 172,191.07
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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.