Finding the Fourth Proportional to 306,007.70, 459,011.55 and 288,511.70
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Solution
The fourth proportional to 306,007.70, 459,011.55 and 288,511.70 is: 432,767.55
Step by Step Solution
- Step 1: Write the proportion equation
306,007.70 : 459,011.55 = 288,511.70 : x - Step 2: Convert to fraction form
306,007.70/459,011.55 = 288,511.70/x - Step 3: Cross multiply
306,007.70x = 459,011.55 × 288,511.70 - Step 4: Simplify right side
306,007.70x = 132,430,202,610.14 - Step 5: Solve for x
x = 132,430,202,610.14/306,007.70 - Step 6: Final answer
x = 432,767.55
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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.