Finding the Fourth Proportional to 278,961.24, 384,937.74 and 165,762.12
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Solution
The fourth proportional to 278,961.24, 384,937.74 and 165,762.12 is: 228,734.63
Step by Step Solution
- Step 1: Write the proportion equation
278,961.24 : 384,937.74 = 165,762.12 : x - Step 2: Convert to fraction form
278,961.24/384,937.74 = 165,762.12/x - Step 3: Cross multiply
278,961.24x = 384,937.74 × 165,762.12 - Step 4: Simplify right side
278,961.24x = 63,808,095,850.41 - Step 5: Solve for x
x = 63,808,095,850.41/278,961.24 - Step 6: Final answer
x = 228,734.63
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.