Finding the Fourth Proportional to 231,918.84, 347,177.94 and 209,742.66
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Solution
The fourth proportional to 231,918.84, 347,177.94 and 209,742.66 is: 313,980.63
Step by Step Solution
- Step 1: Write the proportion equation
231,918.84 : 347,177.94 = 209,742.66 : x - Step 2: Convert to fraction form
231,918.84/347,177.94 = 209,742.66/x - Step 3: Cross multiply
231,918.84x = 347,177.94 × 209,742.66 - Step 4: Simplify right side
231,918.84x = 72,818,024,628.92 - Step 5: Solve for x
x = 72,818,024,628.92/231,918.84 - Step 6: Final answer
x = 313,980.63
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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.