Finding the Fourth Proportional to 292,523.60, 438,785.40 and 272,840.60
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Solution
The fourth proportional to 292,523.60, 438,785.40 and 272,840.60 is: 409,260.90
Step by Step Solution
- Step 1: Write the proportion equation
292,523.60 : 438,785.40 = 272,840.60 : x - Step 2: Convert to fraction form
292,523.60/438,785.40 = 272,840.60/x - Step 3: Cross multiply
292,523.60x = 438,785.40 × 272,840.60 - Step 4: Simplify right side
292,523.60x = 119,718,471,807.24 - Step 5: Solve for x
x = 119,718,471,807.24/292,523.60 - Step 6: Final answer
x = 409,260.90
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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.