Finding the Fourth Proportional to 315,990.24, 473,985.84 and 126,535.92
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Solution
The fourth proportional to 315,990.24, 473,985.84 and 126,535.92 is: 189,804.07
Step by Step Solution
- Step 1: Write the proportion equation
315,990.24 : 473,985.84 = 126,535.92 : x - Step 2: Convert to fraction form
315,990.24/473,985.84 = 126,535.92/x - Step 3: Cross multiply
315,990.24x = 473,985.84 × 126,535.92 - Step 4: Simplify right side
315,990.24x = 59,976,234,331.37 - Step 5: Solve for x
x = 59,976,234,331.37/315,990.24 - Step 6: Final answer
x = 189,804.07
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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.