Finding the Fourth Proportional to 255,534.99, 352,645.29 and 142,357.74
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Solution
The fourth proportional to 255,534.99, 352,645.29 and 142,357.74 is: 196,457.58
Step by Step Solution
- Step 1: Write the proportion equation
255,534.99 : 352,645.29 = 142,357.74 : x - Step 2: Convert to fraction form
255,534.99/352,645.29 = 142,357.74/x - Step 3: Cross multiply
255,534.99x = 352,645.29 × 142,357.74 - Step 4: Simplify right side
255,534.99x = 50,201,786,506.04 - Step 5: Solve for x
x = 50,201,786,506.04/255,534.99 - Step 6: Final answer
x = 196,457.58
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1.5x scale
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.