Finding the Fourth Proportional to 309,246.10, 463,912.35 and 131,751.70
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Solution
The fourth proportional to 309,246.10, 463,912.35 and 131,751.70 is: 197,645.95
Step by Step Solution
- Step 1: Write the proportion equation
309,246.10 : 463,912.35 = 131,751.70 : x - Step 2: Convert to fraction form
309,246.10/463,912.35 = 131,751.70/x - Step 3: Cross multiply
309,246.10x = 463,912.35 × 131,751.70 - Step 4: Simplify right side
309,246.10x = 61,121,240,763.50 - Step 5: Solve for x
x = 61,121,240,763.50/309,246.10 - Step 6: Final answer
x = 197,645.95
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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.