Finding the Fourth Proportional to 307,319.87, 423,136.34 and 261,288.99
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Solution
The fourth proportional to 307,319.87, 423,136.34 and 261,288.99 is: 359,758.27
Step by Step Solution
- Step 1: Write the proportion equation
307,319.87 : 423,136.34 = 261,288.99 : x - Step 2: Convert to fraction form
307,319.87/423,136.34 = 261,288.99/x - Step 3: Cross multiply
307,319.87x = 423,136.34 × 261,288.99 - Step 4: Simplify right side
307,319.87x = 110,560,863,488.77 - Step 5: Solve for x
x = 110,560,863,488.77/307,319.87 - Step 6: Final answer
x = 359,758.27
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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.