Finding the Fourth Proportional to 205,639.12, 283,760.04 and 114,985.72
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Solution
The fourth proportional to 205,639.12, 283,760.04 and 114,985.72 is: 158,668.02
Step by Step Solution
- Step 1: Write the proportion equation
205,639.12 : 283,760.04 = 114,985.72 : x - Step 2: Convert to fraction form
205,639.12/283,760.04 = 114,985.72/x - Step 3: Cross multiply
205,639.12x = 283,760.04 × 114,985.72 - Step 4: Simplify right side
205,639.12x = 32,628,352,506.63 - Step 5: Solve for x
x = 32,628,352,506.63/205,639.12 - Step 6: Final answer
x = 158,668.02
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.