Finding the Fourth Proportional to 287,071.59, 430,631.69 and 87,393.63
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Solution
The fourth proportional to 287,071.59, 430,631.69 and 87,393.63 is: 131,097.84
Step by Step Solution
- Step 1: Write the proportion equation
287,071.59 : 430,631.69 = 87,393.63 : x - Step 2: Convert to fraction form
287,071.59/430,631.69 = 87,393.63/x - Step 3: Cross multiply
287,071.59x = 430,631.69 × 87,393.63 - Step 4: Simplify right side
287,071.59x = 37,634,466,582.13 - Step 5: Solve for x
x = 37,634,466,582.13/287,071.59 - Step 6: Final answer
x = 131,097.84
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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.