Finding the Fourth Proportional to 292,722.32, 438,985.08 and 115,182.80
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Solution
The fourth proportional to 292,722.32, 438,985.08 and 115,182.80 is: 172,735.48
Step by Step Solution
- Step 1: Write the proportion equation
292,722.32 : 438,985.08 = 115,182.80 : x - Step 2: Convert to fraction form
292,722.32/438,985.08 = 115,182.80/x - Step 3: Cross multiply
292,722.32x = 438,985.08 × 115,182.80 - Step 4: Simplify right side
292,722.32x = 50,563,530,672.62 - Step 5: Solve for x
x = 50,563,530,672.62/292,722.32 - Step 6: Final answer
x = 172,735.48
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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.