Finding the Fourth Proportional to 402,415.92, 603,248.67 and 135,990.12
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Solution
The fourth proportional to 402,415.92, 603,248.67 and 135,990.12 is: 203,858.38
Step by Step Solution
- Step 1: Write the proportion equation
402,415.92 : 603,248.67 = 135,990.12 : x - Step 2: Convert to fraction form
402,415.92/603,248.67 = 135,990.12/x - Step 3: Cross multiply
402,415.92x = 603,248.67 × 135,990.12 - Step 4: Simplify right side
402,415.92x = 82,035,859,023.14 - Step 5: Solve for x
x = 82,035,859,023.14/402,415.92 - Step 6: Final answer
x = 203,858.38
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1.5x scale
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.