Finding the Fourth Proportional to 190,744.68, 285,946.92 and 72,335.64
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Solution
The fourth proportional to 190,744.68, 285,946.92 and 72,335.64 is: 108,438.95
Step by Step Solution
- Step 1: Write the proportion equation
190,744.68 : 285,946.92 = 72,335.64 : x - Step 2: Convert to fraction form
190,744.68/285,946.92 = 72,335.64/x - Step 3: Cross multiply
190,744.68x = 285,946.92 × 72,335.64 - Step 4: Simplify right side
190,744.68x = 20,684,153,464.23 - Step 5: Solve for x
x = 20,684,153,464.23/190,744.68 - Step 6: Final answer
x = 108,438.95
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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.