Finding the Fourth Proportional to 180,430.12, 270,466.68 and 85,493.52
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Solution
The fourth proportional to 180,430.12, 270,466.68 and 85,493.52 is: 128,155.70
Step by Step Solution
- Step 1: Write the proportion equation
180,430.12 : 270,466.68 = 85,493.52 : x - Step 2: Convert to fraction form
180,430.12/270,466.68 = 85,493.52/x - Step 3: Cross multiply
180,430.12x = 270,466.68 × 85,493.52 - Step 4: Simplify right side
180,430.12x = 23,123,148,515.91 - Step 5: Solve for x
x = 23,123,148,515.91/180,430.12 - Step 6: Final answer
x = 128,155.70
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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.