Finding the Fourth Proportional to 253,478.01, 349,799.97 and 157,984.63
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Solution
The fourth proportional to 253,478.01, 349,799.97 and 157,984.63 is: 218,018.99
Step by Step Solution
- Step 1: Write the proportion equation
253,478.01 : 349,799.97 = 157,984.63 : x - Step 2: Convert to fraction form
253,478.01/349,799.97 = 157,984.63/x - Step 3: Cross multiply
253,478.01x = 349,799.97 × 157,984.63 - Step 4: Simplify right side
253,478.01x = 55,263,018,834.46 - Step 5: Solve for x
x = 55,263,018,834.46/253,478.01 - Step 6: Final answer
x = 218,018.99
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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.