Finding the Fourth Proportional to 211,657.20, 317,226.60 and 93,202.80
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Solution
The fourth proportional to 211,657.20, 317,226.60 and 93,202.80 is: 139,690.06
Step by Step Solution
- Step 1: Write the proportion equation
211,657.20 : 317,226.60 = 93,202.80 : x - Step 2: Convert to fraction form
211,657.20/317,226.60 = 93,202.80/x - Step 3: Cross multiply
211,657.20x = 317,226.60 × 93,202.80 - Step 4: Simplify right side
211,657.20x = 29,566,407,354.48 - Step 5: Solve for x
x = 29,566,407,354.48/211,657.20 - Step 6: Final answer
x = 139,690.06
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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.