Finding the Fourth Proportional to 442,859.70, 664,289.55 and 256,235.70
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Solution
The fourth proportional to 442,859.70, 664,289.55 and 256,235.70 is: 384,353.55
Step by Step Solution
- Step 1: Write the proportion equation
442,859.70 : 664,289.55 = 256,235.70 : x - Step 2: Convert to fraction form
442,859.70/664,289.55 = 256,235.70/x - Step 3: Cross multiply
442,859.70x = 664,289.55 × 256,235.70 - Step 4: Simplify right side
442,859.70x = 170,214,697,846.94 - Step 5: Solve for x
x = 170,214,697,846.94/442,859.70 - Step 6: Final answer
x = 384,353.55
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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.