Finding the Fourth Proportional to 185,941.28, 278,605.42 and 107,121.80
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Solution
The fourth proportional to 185,941.28, 278,605.42 and 107,121.80 is: 160,506.12
Step by Step Solution
- Step 1: Write the proportion equation
185,941.28 : 278,605.42 = 107,121.80 : x - Step 2: Convert to fraction form
185,941.28/278,605.42 = 107,121.80/x - Step 3: Cross multiply
185,941.28x = 278,605.42 × 107,121.80 - Step 4: Simplify right side
185,941.28x = 29,844,714,080.16 - Step 5: Solve for x
x = 29,844,714,080.16/185,941.28 - Step 6: Final answer
x = 160,506.12
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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.