Finding the Fourth Proportional to 298,140.18, 447,212.93 and 84,907.90
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Solution
The fourth proportional to 298,140.18, 447,212.93 and 84,907.90 is: 127,362.61
Step by Step Solution
- Step 1: Write the proportion equation
298,140.18 : 447,212.93 = 84,907.90 : x - Step 2: Convert to fraction form
298,140.18/447,212.93 = 84,907.90/x - Step 3: Cross multiply
298,140.18x = 447,212.93 × 84,907.90 - Step 4: Simplify right side
298,140.18x = 37,971,910,739.15 - Step 5: Solve for x
x = 37,971,910,739.15/298,140.18 - Step 6: Final answer
x = 127,362.61
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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.