Finding the Fourth Proportional to 236,099.07, 325,807.20 and 128,666.79
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Solution
The fourth proportional to 236,099.07, 325,807.20 and 128,666.79 is: 177,554.99
Step by Step Solution
- Step 1: Write the proportion equation
236,099.07 : 325,807.20 = 128,666.79 : x - Step 2: Convert to fraction form
236,099.07/325,807.20 = 128,666.79/x - Step 3: Cross multiply
236,099.07x = 325,807.20 × 128,666.79 - Step 4: Simplify right side
236,099.07x = 41,920,566,582.89 - Step 5: Solve for x
x = 41,920,566,582.89/236,099.07 - Step 6: Final answer
x = 177,554.99
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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.