Finding the Fourth Proportional to 316,039.68, 474,059.52 and 126,586.08
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Solution
The fourth proportional to 316,039.68, 474,059.52 and 126,586.08 is: 189,879.12
Step by Step Solution
- Step 1: Write the proportion equation
316,039.68 : 474,059.52 = 126,586.08 : x - Step 2: Convert to fraction form
316,039.68/474,059.52 = 126,586.08/x - Step 3: Cross multiply
316,039.68x = 474,059.52 × 126,586.08 - Step 4: Simplify right side
316,039.68x = 60,009,336,323.48 - Step 5: Solve for x
x = 60,009,336,323.48/316,039.68 - Step 6: Final answer
x = 189,879.12
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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.