Finding the Fourth Proportional to 309,698.70, 464,234.30 and 209,868.99
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Solution
The fourth proportional to 309,698.70, 464,234.30 and 209,868.99 is: 314,590.87
Step by Step Solution
- Step 1: Write the proportion equation
309,698.70 : 464,234.30 = 209,868.99 : x - Step 2: Convert to fraction form
309,698.70/464,234.30 = 209,868.99/x - Step 3: Cross multiply
309,698.70x = 464,234.30 × 209,868.99 - Step 4: Simplify right side
309,698.70x = 97,428,381,867.86 - Step 5: Solve for x
x = 97,428,381,867.86/309,698.70 - Step 6: Final answer
x = 314,590.87
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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.