Finding the Fourth Proportional to 193,405.84, 266,919.24 and 129,875.92
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Solution
The fourth proportional to 193,405.84, 266,919.24 and 129,875.92 is: 179,241.65
Step by Step Solution
- Step 1: Write the proportion equation
193,405.84 : 266,919.24 = 129,875.92 : x - Step 2: Convert to fraction form
193,405.84/266,919.24 = 129,875.92/x - Step 3: Cross multiply
193,405.84x = 266,919.24 × 129,875.92 - Step 4: Simplify right side
193,405.84x = 34,666,381,860.70 - Step 5: Solve for x
x = 34,666,381,860.70/193,405.84 - Step 6: Final answer
x = 179,241.65
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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.