Finding the Fourth Proportional to 290,501.70, 435,752.55 and 133,037.70
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Solution
The fourth proportional to 290,501.70, 435,752.55 and 133,037.70 is: 199,556.55
Step by Step Solution
- Step 1: Write the proportion equation
290,501.70 : 435,752.55 = 133,037.70 : x - Step 2: Convert to fraction form
290,501.70/435,752.55 = 133,037.70/x - Step 3: Cross multiply
290,501.70x = 435,752.55 × 133,037.70 - Step 4: Simplify right side
290,501.70x = 57,971,517,021.14 - Step 5: Solve for x
x = 57,971,517,021.14/290,501.70 - Step 6: Final answer
x = 199,556.55
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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.