Finding the Fourth Proportional to 207,863.99, 286,853.10 and 115,987.15
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Solution
The fourth proportional to 207,863.99, 286,853.10 and 115,987.15 is: 160,062.71
Step by Step Solution
- Step 1: Write the proportion equation
207,863.99 : 286,853.10 = 115,987.15 : x - Step 2: Convert to fraction form
207,863.99/286,853.10 = 115,987.15/x - Step 3: Cross multiply
207,863.99x = 286,853.10 × 115,987.15 - Step 4: Simplify right side
207,863.99x = 33,271,273,461.28 - Step 5: Solve for x
x = 33,271,273,461.28/207,863.99 - Step 6: Final answer
x = 160,062.71
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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.