Finding the Fourth Proportional to 335,969.70, 503,954.55 and 86,651.70
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Solution
The fourth proportional to 335,969.70, 503,954.55 and 86,651.70 is: 129,977.55
Step by Step Solution
- Step 1: Write the proportion equation
335,969.70 : 503,954.55 = 86,651.70 : x - Step 2: Convert to fraction form
335,969.70/503,954.55 = 86,651.70/x - Step 3: Cross multiply
335,969.70x = 503,954.55 × 86,651.70 - Step 4: Simplify right side
335,969.70x = 43,668,518,480.24 - Step 5: Solve for x
x = 43,668,518,480.24/335,969.70 - Step 6: Final answer
x = 129,977.55
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1.5x scale
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.