Finding the Fourth Proportional to 393,106.96, 589,762.50 and 112,646.08
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Solution
The fourth proportional to 393,106.96, 589,762.50 and 112,646.08 is: 168,998.37
Step by Step Solution
- Step 1: Write the proportion equation
393,106.96 : 589,762.50 = 112,646.08 : x - Step 2: Convert to fraction form
393,106.96/589,762.50 = 112,646.08/x - Step 3: Cross multiply
393,106.96x = 589,762.50 × 112,646.08 - Step 4: Simplify right side
393,106.96x = 66,434,433,756 - Step 5: Solve for x
x = 66,434,433,756/393,106.96 - Step 6: Final answer
x = 168,998.37
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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.