Finding the Fourth Proportional to 313,283.09, 432,330.70 and 170,043.09
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Solution
The fourth proportional to 313,283.09, 432,330.70 and 170,043.09 is: 234,659.48
Step by Step Solution
- Step 1: Write the proportion equation
313,283.09 : 432,330.70 = 170,043.09 : x - Step 2: Convert to fraction form
313,283.09/432,330.70 = 170,043.09/x - Step 3: Cross multiply
313,283.09x = 432,330.70 × 170,043.09 - Step 4: Simplify right side
313,283.09x = 73,514,848,129.86 - Step 5: Solve for x
x = 73,514,848,129.86/313,283.09 - Step 6: Final answer
x = 234,659.48
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.