Finding the Fourth Proportional to 406,121.76, 609,202.80 and 106,603.20
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Solution
The fourth proportional to 406,121.76, 609,202.80 and 106,603.20 is: 159,910.09
Step by Step Solution
- Step 1: Write the proportion equation
406,121.76 : 609,202.80 = 106,603.20 : x - Step 2: Convert to fraction form
406,121.76/609,202.80 = 106,603.20/x - Step 3: Cross multiply
406,121.76x = 609,202.80 × 106,603.20 - Step 4: Simplify right side
406,121.76x = 64,942,967,928.96 - Step 5: Solve for x
x = 64,942,967,928.96/406,121.76 - Step 6: Final answer
x = 159,910.09
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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.