Finding the Fourth Proportional to 485,706.12, 728,118.12 and 169,990.80
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Solution
The fourth proportional to 485,706.12, 728,118.12 and 169,990.80 is: 254,831.83
Step by Step Solution
- Step 1: Write the proportion equation
485,706.12 : 728,118.12 = 169,990.80 : x - Step 2: Convert to fraction form
485,706.12/728,118.12 = 169,990.80/x - Step 3: Cross multiply
485,706.12x = 728,118.12 × 169,990.80 - Step 4: Simplify right side
485,706.12x = 123,773,381,713.30 - Step 5: Solve for x
x = 123,773,381,713.30/485,706.12 - Step 6: Final answer
x = 254,831.83
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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.