Finding the Fourth Proportional to 236,284.11, 326,079.99 and 128,860.02
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Solution
The fourth proportional to 236,284.11, 326,079.99 and 128,860.02 is: 177,831.15
Step by Step Solution
- Step 1: Write the proportion equation
236,284.11 : 326,079.99 = 128,860.02 : x - Step 2: Convert to fraction form
236,284.11/326,079.99 = 128,860.02/x - Step 3: Cross multiply
236,284.11x = 326,079.99 × 128,860.02 - Step 4: Simplify right side
236,284.11x = 42,018,674,033.00 - Step 5: Solve for x
x = 42,018,674,033.00/236,284.11 - Step 6: Final answer
x = 177,831.15
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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.