Finding the Fourth Proportional to 268,905.40, 403,358.10 and 180,431.80
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Solution
The fourth proportional to 268,905.40, 403,358.10 and 180,431.80 is: 270,647.70
Step by Step Solution
- Step 1: Write the proportion equation
268,905.40 : 403,358.10 = 180,431.80 : x - Step 2: Convert to fraction form
268,905.40/403,358.10 = 180,431.80/x - Step 3: Cross multiply
268,905.40x = 403,358.10 × 180,431.80 - Step 4: Simplify right side
268,905.40x = 72,778,628,027.58 - Step 5: Solve for x
x = 72,778,628,027.58/268,905.40 - Step 6: Final answer
x = 270,647.70
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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.