Finding the Fourth Proportional to 266,903.36, 400,455.36 and 138,739.76
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Solution
The fourth proportional to 266,903.36, 400,455.36 and 138,739.76 is: 208,161.79
Step by Step Solution
- Step 1: Write the proportion equation
266,903.36 : 400,455.36 = 138,739.76 : x - Step 2: Convert to fraction form
266,903.36/400,455.36 = 138,739.76/x - Step 3: Cross multiply
266,903.36x = 400,455.36 × 138,739.76 - Step 4: Simplify right side
266,903.36x = 55,559,080,537.11 - Step 5: Solve for x
x = 55,559,080,537.11/266,903.36 - Step 6: Final answer
x = 208,161.79
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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.