Finding the Fourth Proportional to 408,189.18, 612,282.96 and 108,669.81
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Solution
The fourth proportional to 408,189.18, 612,282.96 and 108,669.81 is: 163,004.50
Step by Step Solution
- Step 1: Write the proportion equation
408,189.18 : 612,282.96 = 108,669.81 : x - Step 2: Convert to fraction form
408,189.18/612,282.96 = 108,669.81/x - Step 3: Cross multiply
408,189.18x = 612,282.96 × 108,669.81 - Step 4: Simplify right side
408,189.18x = 66,536,672,929.44 - Step 5: Solve for x
x = 66,536,672,929.44/408,189.18 - Step 6: Final answer
x = 163,004.50
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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.