Finding the Fourth Proportional to 201,795.84, 278,511.48 and 153,958.80
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Solution
The fourth proportional to 201,795.84, 278,511.48 and 153,958.80 is: 212,488.49
Step by Step Solution
- Step 1: Write the proportion equation
201,795.84 : 278,511.48 = 153,958.80 : x - Step 2: Convert to fraction form
201,795.84/278,511.48 = 153,958.80/x - Step 3: Cross multiply
201,795.84x = 278,511.48 × 153,958.80 - Step 4: Simplify right side
201,795.84x = 42,879,293,247.02 - Step 5: Solve for x
x = 42,879,293,247.02/201,795.84 - Step 6: Final answer
x = 212,488.49
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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.