Finding the Fourth Proportional to 216,945.57, 299,388.24 and 130,908.99
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Solution
The fourth proportional to 216,945.57, 299,388.24 and 130,908.99 is: 180,656.43
Step by Step Solution
- Step 1: Write the proportion equation
216,945.57 : 299,388.24 = 130,908.99 : x - Step 2: Convert to fraction form
216,945.57/299,388.24 = 130,908.99/x - Step 3: Cross multiply
216,945.57x = 299,388.24 × 130,908.99 - Step 4: Simplify right side
216,945.57x = 39,192,612,116.28 - Step 5: Solve for x
x = 39,192,612,116.28/216,945.57 - Step 6: Final answer
x = 180,656.43
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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.