Finding the Fourth Proportional to 309,106.80, 463,438.80 and 119,404.80
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Solution
The fourth proportional to 309,106.80, 463,438.80 and 119,404.80 is: 179,021.68
Step by Step Solution
- Step 1: Write the proportion equation
309,106.80 : 463,438.80 = 119,404.80 : x - Step 2: Convert to fraction form
309,106.80/463,438.80 = 119,404.80/x - Step 3: Cross multiply
309,106.80x = 463,438.80 × 119,404.80 - Step 4: Simplify right side
309,106.80x = 55,336,817,226.24 - Step 5: Solve for x
x = 55,336,817,226.24/309,106.80 - Step 6: Final answer
x = 179,021.68
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1.5x scale
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.