Finding the Fourth Proportional to 402,170.13, 603,329.34 and 132,313.44
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Solution
The fourth proportional to 402,170.13, 603,329.34 and 132,313.44 is: 198,494.55
Step by Step Solution
- Step 1: Write the proportion equation
402,170.13 : 603,329.34 = 132,313.44 : x - Step 2: Convert to fraction form
402,170.13/603,329.34 = 132,313.44/x - Step 3: Cross multiply
402,170.13x = 603,329.34 × 132,313.44 - Step 4: Simplify right side
402,170.13x = 79,828,580,428.33 - Step 5: Solve for x
x = 79,828,580,428.33/402,170.13 - Step 6: Final answer
x = 198,494.55
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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.