Finding the Fourth Proportional to 361,809.70, 542,714.55 and 221,841.70
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Solution
The fourth proportional to 361,809.70, 542,714.55 and 221,841.70 is: 332,762.55
Step by Step Solution
- Step 1: Write the proportion equation
361,809.70 : 542,714.55 = 221,841.70 : x - Step 2: Convert to fraction form
361,809.70/542,714.55 = 221,841.70/x - Step 3: Cross multiply
361,809.70x = 542,714.55 × 221,841.70 - Step 4: Simplify right side
361,809.70x = 120,396,718,386.74 - Step 5: Solve for x
x = 120,396,718,386.74/361,809.70 - Step 6: Final answer
x = 332,762.55
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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.