Finding the Fourth Proportional to 318,528.81, 477,297.36 and 118,795.50
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Solution
The fourth proportional to 318,528.81, 477,297.36 and 118,795.50 is: 178,008.32
Step by Step Solution
- Step 1: Write the proportion equation
318,528.81 : 477,297.36 = 118,795.50 : x - Step 2: Convert to fraction form
318,528.81/477,297.36 = 118,795.50/x - Step 3: Cross multiply
318,528.81x = 477,297.36 × 118,795.50 - Step 4: Simplify right side
318,528.81x = 56,700,778,529.88 - Step 5: Solve for x
x = 56,700,778,529.88/318,528.81 - Step 6: Final answer
x = 178,008.32
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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.