Finding the Fourth Proportional to 302,493.80, 453,740.70 and 261,021.80
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Solution
The fourth proportional to 302,493.80, 453,740.70 and 261,021.80 is: 391,532.70
Step by Step Solution
- Step 1: Write the proportion equation
302,493.80 : 453,740.70 = 261,021.80 : x - Step 2: Convert to fraction form
302,493.80/453,740.70 = 261,021.80/x - Step 3: Cross multiply
302,493.80x = 453,740.70 × 261,021.80 - Step 4: Simplify right side
302,493.80x = 118,436,214,247.26 - Step 5: Solve for x
x = 118,436,214,247.26/302,493.80 - Step 6: Final answer
x = 391,532.70
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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.