Finding the Fourth Proportional to 278,336.34, 417,579.84 and 198,475.20
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Solution
The fourth proportional to 278,336.34, 417,579.84 and 198,475.20 is: 297,766.52
Step by Step Solution
- Step 1: Write the proportion equation
278,336.34 : 417,579.84 = 198,475.20 : x - Step 2: Convert to fraction form
278,336.34/417,579.84 = 198,475.20/x - Step 3: Cross multiply
278,336.34x = 417,579.84 × 198,475.20 - Step 4: Simplify right side
278,336.34x = 82,879,242,259.97 - Step 5: Solve for x
x = 82,879,242,259.97/278,336.34 - Step 6: Final answer
x = 297,766.52
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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.