Finding the Fourth Proportional to 400,201.20, 561,214.80 and 400,201.20
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Solution
The fourth proportional to 400,201.20, 561,214.80 and 400,201.20 is: 561,214.80
Step by Step Solution
- Step 1: Write the proportion equation
400,201.20 : 561,214.80 = 400,201.20 : x - Step 2: Convert to fraction form
400,201.20/561,214.80 = 400,201.20/x - Step 3: Cross multiply
400,201.20x = 561,214.80 × 400,201.20 - Step 4: Simplify right side
400,201.20x = 224,598,836,417.76 - Step 5: Solve for x
x = 224,598,836,417.76/400,201.20 - Step 6: Final answer
x = 561,214.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.