Finding the Fourth Proportional to 323,497.60, 485,246.40 and 211,523.20
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Solution
The fourth proportional to 323,497.60, 485,246.40 and 211,523.20 is: 317,284.80
Step by Step Solution
- Step 1: Write the proportion equation
323,497.60 : 485,246.40 = 211,523.20 : x - Step 2: Convert to fraction form
323,497.60/485,246.40 = 211,523.20/x - Step 3: Cross multiply
323,497.60x = 485,246.40 × 211,523.20 - Step 4: Simplify right side
323,497.60x = 102,640,871,316.48 - Step 5: Solve for x
x = 102,640,871,316.48/323,497.60 - Step 6: Final answer
x = 317,284.80
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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.