Finding the Fourth Proportional to 207,688.74, 286,610.09 and 112,195.14
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Solution
The fourth proportional to 207,688.74, 286,610.09 and 112,195.14 is: 154,829.09
Step by Step Solution
- Step 1: Write the proportion equation
207,688.74 : 286,610.09 = 112,195.14 : x - Step 2: Convert to fraction form
207,688.74/286,610.09 = 112,195.14/x - Step 3: Cross multiply
207,688.74x = 286,610.09 × 112,195.14 - Step 4: Simplify right side
207,688.74x = 32,156,258,020.40 - Step 5: Solve for x
x = 32,156,258,020.40/207,688.74 - Step 6: Final answer
x = 154,829.09
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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.