Finding the Fourth Proportional to 393,221.93, 589,737.02 and 108,905.09
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Solution
The fourth proportional to 393,221.93, 589,737.02 and 108,905.09 is: 163,331.08
Step by Step Solution
- Step 1: Write the proportion equation
393,221.93 : 589,737.02 = 108,905.09 : x - Step 2: Convert to fraction form
393,221.93/589,737.02 = 108,905.09/x - Step 3: Cross multiply
393,221.93x = 589,737.02 × 108,905.09 - Step 4: Simplify right side
393,221.93x = 64,225,359,746.22 - Step 5: Solve for x
x = 64,225,359,746.22/393,221.93 - Step 6: Final answer
x = 163,331.08
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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.