Finding the Fourth Proportional to 185,289.93, 255,700.09 and 100,406.99
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Solution
The fourth proportional to 185,289.93, 255,700.09 and 100,406.99 is: 138,561.64
Step by Step Solution
- Step 1: Write the proportion equation
185,289.93 : 255,700.09 = 100,406.99 : x - Step 2: Convert to fraction form
185,289.93/255,700.09 = 100,406.99/x - Step 3: Cross multiply
185,289.93x = 255,700.09 × 100,406.99 - Step 4: Simplify right side
185,289.93x = 25,674,077,144.39 - Step 5: Solve for x
x = 25,674,077,144.39/185,289.93 - Step 6: Final answer
x = 138,561.64
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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.