Finding the Fourth Proportional to 292,955.20, 439,605.60 and 193,403.20
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Solution
The fourth proportional to 292,955.20, 439,605.60 and 193,403.20 is: 290,218.88
Step by Step Solution
- Step 1: Write the proportion equation
292,955.20 : 439,605.60 = 193,403.20 : x - Step 2: Convert to fraction form
292,955.20/439,605.60 = 193,403.20/x - Step 3: Cross multiply
292,955.20x = 439,605.60 × 193,403.20 - Step 4: Simplify right side
292,955.20x = 85,021,129,777.92 - Step 5: Solve for x
x = 85,021,129,777.92/292,955.20 - Step 6: Final answer
x = 290,218.88
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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.