Finding the Fourth Proportional to 508,742.75, 763,128.71 and 134,765.75
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Solution
The fourth proportional to 508,742.75, 763,128.71 and 134,765.75 is: 202,152.49
Step by Step Solution
- Step 1: Write the proportion equation
508,742.75 : 763,128.71 = 134,765.75 : x - Step 2: Convert to fraction form
508,742.75/763,128.71 = 134,765.75/x - Step 3: Cross multiply
508,742.75x = 763,128.71 × 134,765.75 - Step 4: Simplify right side
508,742.75x = 102,843,612,949.68 - Step 5: Solve for x
x = 102,843,612,949.68/508,742.75 - Step 6: Final answer
x = 202,152.49
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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.