Finding the Fourth Proportional to 425,430.94, 638,257.11 and 159,212.02
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Solution
The fourth proportional to 425,430.94, 638,257.11 and 159,212.02 is: 238,859.45
Step by Step Solution
- Step 1: Write the proportion equation
425,430.94 : 638,257.11 = 159,212.02 : x - Step 2: Convert to fraction form
425,430.94/638,257.11 = 159,212.02/x - Step 3: Cross multiply
425,430.94x = 638,257.11 × 159,212.02 - Step 4: Simplify right side
425,430.94x = 101,618,199,775.12 - Step 5: Solve for x
x = 101,618,199,775.12/425,430.94 - Step 6: Final answer
x = 238,859.45
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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.