Finding the Fourth Proportional to 318,669.74, 477,783.14 and 141,079.88
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Solution
The fourth proportional to 318,669.74, 477,783.14 and 141,079.88 is: 211,521.77
Step by Step Solution
- Step 1: Write the proportion equation
318,669.74 : 477,783.14 = 141,079.88 : x - Step 2: Convert to fraction form
318,669.74/477,783.14 = 141,079.88/x - Step 3: Cross multiply
318,669.74x = 477,783.14 × 141,079.88 - Step 4: Simplify right side
318,669.74x = 67,405,588,057.22 - Step 5: Solve for x
x = 67,405,588,057.22/318,669.74 - Step 6: Final answer
x = 211,521.77
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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.