Finding the Fourth Proportional to 425,396.14, 638,106.58 and 159,105.84
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Solution
The fourth proportional to 425,396.14, 638,106.58 and 159,105.84 is: 238,663.39
Step by Step Solution
- Step 1: Write the proportion equation
425,396.14 : 638,106.58 = 159,105.84 : x - Step 2: Convert to fraction form
425,396.14/638,106.58 = 159,105.84/x - Step 3: Cross multiply
425,396.14x = 638,106.58 × 159,105.84 - Step 4: Simplify right side
425,396.14x = 101,526,483,420.43 - Step 5: Solve for x
x = 101,526,483,420.43/425,396.14 - Step 6: Final answer
x = 238,663.39
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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.