Finding the Fourth Proportional to 318,023.44, 477,032.73 and 81,365.74
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Solution
The fourth proportional to 318,023.44, 477,032.73 and 81,365.74 is: 122,047.99
Step by Step Solution
- Step 1: Write the proportion equation
318,023.44 : 477,032.73 = 81,365.74 : x - Step 2: Convert to fraction form
318,023.44/477,032.73 = 81,365.74/x - Step 3: Cross multiply
318,023.44x = 477,032.73 × 81,365.74 - Step 4: Simplify right side
318,023.44x = 38,814,121,080.67 - Step 5: Solve for x
x = 38,814,121,080.67/318,023.44 - Step 6: Final answer
x = 122,047.99
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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.