Finding the Fourth Proportional to 193,415.84, 266,918.46 and 108,539.18
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Solution
The fourth proportional to 193,415.84, 266,918.46 and 108,539.18 is: 149,786.65
Step by Step Solution
- Step 1: Write the proportion equation
193,415.84 : 266,918.46 = 108,539.18 : x - Step 2: Convert to fraction form
193,415.84/266,918.46 = 108,539.18/x - Step 3: Cross multiply
193,415.84x = 266,918.46 × 108,539.18 - Step 4: Simplify right side
193,415.84x = 28,971,110,775.26 - Step 5: Solve for x
x = 28,971,110,775.26/193,415.84 - Step 6: Final answer
x = 149,786.65
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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.