Finding the Fourth Proportional to 345,956.74, 477,420.09 and 186,980.74
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Solution
The fourth proportional to 345,956.74, 477,420.09 and 186,980.74 is: 258,033.31
Step by Step Solution
- Step 1: Write the proportion equation
345,956.74 : 477,420.09 = 186,980.74 : x - Step 2: Convert to fraction form
345,956.74/477,420.09 = 186,980.74/x - Step 3: Cross multiply
345,956.74x = 477,420.09 × 186,980.74 - Step 4: Simplify right side
345,956.74x = 89,268,361,719.07 - Step 5: Solve for x
x = 89,268,361,719.07/345,956.74 - Step 6: Final answer
x = 258,033.31
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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.