Finding the Fourth Proportional to 286,886.05, 430,324.20 and 99,892.69
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Solution
The fourth proportional to 286,886.05, 430,324.20 and 99,892.69 is: 149,837.34
Step by Step Solution
- Step 1: Write the proportion equation
286,886.05 : 430,324.20 = 99,892.69 : x - Step 2: Convert to fraction form
286,886.05/430,324.20 = 99,892.69/x - Step 3: Cross multiply
286,886.05x = 430,324.20 × 99,892.69 - Step 4: Simplify right side
286,886.05x = 42,986,240,834.29 - Step 5: Solve for x
x = 42,986,240,834.29/286,886.05 - Step 6: Final answer
x = 149,837.34
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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.