Finding the Fourth Proportional to 302,339.64, 453,534.60 and 91,979.40
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Solution
The fourth proportional to 302,339.64, 453,534.60 and 91,979.40 is: 137,976.75
Step by Step Solution
- Step 1: Write the proportion equation
302,339.64 : 453,534.60 = 91,979.40 : x - Step 2: Convert to fraction form
302,339.64/453,534.60 = 91,979.40/x - Step 3: Cross multiply
302,339.64x = 453,534.60 × 91,979.40 - Step 4: Simplify right side
302,339.64x = 41,715,840,387.24 - Step 5: Solve for x
x = 41,715,840,387.24/302,339.64 - Step 6: Final answer
x = 137,976.75
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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.