Finding the Fourth Proportional to 278,048.80, 417,073.20 and 165,855.70
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Solution
The fourth proportional to 278,048.80, 417,073.20 and 165,855.70 is: 248,783.55
Step by Step Solution
- Step 1: Write the proportion equation
278,048.80 : 417,073.20 = 165,855.70 : x - Step 2: Convert to fraction form
278,048.80/417,073.20 = 165,855.70/x - Step 3: Cross multiply
278,048.80x = 417,073.20 × 165,855.70 - Step 4: Simplify right side
278,048.80x = 69,173,967,537.24 - Step 5: Solve for x
x = 69,173,967,537.24/278,048.80 - Step 6: Final answer
x = 248,783.55
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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.