Finding the Fourth Proportional to 292,099.20, 438,148.80 and 125,887.20
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Solution
The fourth proportional to 292,099.20, 438,148.80 and 125,887.20 is: 188,830.80
Step by Step Solution
- Step 1: Write the proportion equation
292,099.20 : 438,148.80 = 125,887.20 : x - Step 2: Convert to fraction form
292,099.20/438,148.80 = 125,887.20/x - Step 3: Cross multiply
292,099.20x = 438,148.80 × 125,887.20 - Step 4: Simplify right side
292,099.20x = 55,157,325,615.36 - Step 5: Solve for x
x = 55,157,325,615.36/292,099.20 - Step 6: Final answer
x = 188,830.80
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1.5x scale
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.