Finding the Fourth Proportional to 278,549.10, 417,775.05 and 100,964.70
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Solution
The fourth proportional to 278,549.10, 417,775.05 and 100,964.70 is: 151,429.43
Step by Step Solution
- Step 1: Write the proportion equation
278,549.10 : 417,775.05 = 100,964.70 : x - Step 2: Convert to fraction form
278,549.10/417,775.05 = 100,964.70/x - Step 3: Cross multiply
278,549.10x = 417,775.05 × 100,964.70 - Step 4: Simplify right side
278,549.10x = 42,180,532,590.74 - Step 5: Solve for x
x = 42,180,532,590.74/278,549.10 - Step 6: Final answer
x = 151,429.43
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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.