Finding the Fourth Proportional to 399,863.06, 551,811.02 and 218,575.74
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Solution
The fourth proportional to 399,863.06, 551,811.02 and 218,575.74 is: 301,634.52
Step by Step Solution
- Step 1: Write the proportion equation
399,863.06 : 551,811.02 = 218,575.74 : x - Step 2: Convert to fraction form
399,863.06/551,811.02 = 218,575.74/x - Step 3: Cross multiply
399,863.06x = 551,811.02 × 218,575.74 - Step 4: Simplify right side
399,863.06x = 120,612,502,583.09 - Step 5: Solve for x
x = 120,612,502,583.09/399,863.06 - Step 6: Final answer
x = 301,634.52
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.