Finding the Fourth Proportional to 253,213.68, 349,396.06 and 145,762.95
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Solution
The fourth proportional to 253,213.68, 349,396.06 and 145,762.95 is: 201,130.52
Step by Step Solution
- Step 1: Write the proportion equation
253,213.68 : 349,396.06 = 145,762.95 : x - Step 2: Convert to fraction form
253,213.68/349,396.06 = 145,762.95/x - Step 3: Cross multiply
253,213.68x = 349,396.06 × 145,762.95 - Step 4: Simplify right side
253,213.68x = 50,928,998,749.33 - Step 5: Solve for x
x = 50,928,998,749.33/253,213.68 - Step 6: Final answer
x = 201,130.52
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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.