Finding the Fourth Proportional to 215,646.28, 297,618.18 and 130,763.08
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Solution
The fourth proportional to 215,646.28, 297,618.18 and 130,763.08 is: 180,469.01
Step by Step Solution
- Step 1: Write the proportion equation
215,646.28 : 297,618.18 = 130,763.08 : x - Step 2: Convert to fraction form
215,646.28/297,618.18 = 130,763.08/x - Step 3: Cross multiply
215,646.28x = 297,618.18 × 130,763.08 - Step 4: Simplify right side
215,646.28x = 38,917,469,880.79 - Step 5: Solve for x
x = 38,917,469,880.79/215,646.28 - Step 6: Final answer
x = 180,469.01
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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.