Finding the Fourth Proportional to 278,799.95, 418,208.12 and 68,437.88
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Solution
The fourth proportional to 278,799.95, 418,208.12 and 68,437.88 is: 102,658.83
Step by Step Solution
- Step 1: Write the proportion equation
278,799.95 : 418,208.12 = 68,437.88 : x - Step 2: Convert to fraction form
278,799.95/418,208.12 = 68,437.88/x - Step 3: Cross multiply
278,799.95x = 418,208.12 × 68,437.88 - Step 4: Simplify right side
278,799.95x = 28,621,277,131.59 - Step 5: Solve for x
x = 28,621,277,131.59/278,799.95 - Step 6: Final answer
x = 102,658.83
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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.