Finding the Fourth Proportional to 211,929.40, 317,894.10 and 93,539.80
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Solution
The fourth proportional to 211,929.40, 317,894.10 and 93,539.80 is: 140,309.70
Step by Step Solution
- Step 1: Write the proportion equation
211,929.40 : 317,894.10 = 93,539.80 : x - Step 2: Convert to fraction form
211,929.40/317,894.10 = 93,539.80/x - Step 3: Cross multiply
211,929.40x = 317,894.10 × 93,539.80 - Step 4: Simplify right side
211,929.40x = 29,735,750,535.18 - Step 5: Solve for x
x = 29,735,750,535.18/211,929.40 - Step 6: Final answer
x = 140,309.70
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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.