Finding the Fourth Proportional to 272,921.97, 409,462.14 and 112,968.45
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Solution
The fourth proportional to 272,921.97, 409,462.14 and 112,968.45 is: 169,485.45
Step by Step Solution
- Step 1: Write the proportion equation
272,921.97 : 409,462.14 = 112,968.45 : x - Step 2: Convert to fraction form
272,921.97/409,462.14 = 112,968.45/x - Step 3: Cross multiply
272,921.97x = 409,462.14 × 112,968.45 - Step 4: Simplify right side
272,921.97x = 46,256,303,289.48 - Step 5: Solve for x
x = 46,256,303,289.48/272,921.97 - Step 6: Final answer
x = 169,485.45
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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.