Finding the Fourth Proportional to 255,291.51, 352,302.17 and 142,140.99
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Solution
The fourth proportional to 255,291.51, 352,302.17 and 142,140.99 is: 196,154.50
Step by Step Solution
- Step 1: Write the proportion equation
255,291.51 : 352,302.17 = 142,140.99 : x - Step 2: Convert to fraction form
255,291.51/352,302.17 = 142,140.99/x - Step 3: Cross multiply
255,291.51x = 352,302.17 × 142,140.99 - Step 4: Simplify right side
255,291.51x = 50,076,578,512.24 - Step 5: Solve for x
x = 50,076,578,512.24/255,291.51 - Step 6: Final answer
x = 196,154.50
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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.