Finding the Fourth Proportional to 185,391.62, 255,704.55 and 121,706.18
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Solution
The fourth proportional to 185,391.62, 255,704.55 and 121,706.18 is: 167,865.32
Step by Step Solution
- Step 1: Write the proportion equation
185,391.62 : 255,704.55 = 121,706.18 : x - Step 2: Convert to fraction form
185,391.62/255,704.55 = 121,706.18/x - Step 3: Cross multiply
185,391.62x = 255,704.55 × 121,706.18 - Step 4: Simplify right side
185,391.62x = 31,120,823,989.12 - Step 5: Solve for x
x = 31,120,823,989.12/185,391.62 - Step 6: Final answer
x = 167,865.32
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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.